baber/WOPTO huggingface dataset:
Patent GB-493595-A (GB)
Title: Improvements in apparatus for supplying water-softening solutions to water heaters
IPC: F24H9/00
Filed: 1938-03-11
Abstract: 493,595. Preventing incrustation. JUNKERS & CO. GES. March 11, 1938, No. 7631. Convention date, March 16, 1937. [Class 123 (i)] Water-softening solution is drawn from a container 23 into the water supply to a flow heater 10 by the suction produced by a Venturi passage 16 in the water supply pipe 12, and a valve device 21 automatically decreases the flow of solution when the water flow is increased and increases the flow of solution when the water flow is decreased. When the outlet valve of the heater valve is partly opened to deliver a relatively slow flow of '' boiling " water, the suction in the pipe 12 moves a diaphragm 27 carrying a valve member 30 in a passage 31, against the compression of a spring 34, and solution is drawn into the water at a predetermined rate. When the heater outlet valve'is further opened to deliver " hot water, the further movement of the diaphragm due to the increased suction in pipe 12 causes a second valve member 29 to move into the passage 31 and decrease the supply of solution. When the heater outlet valve is fully opened to deliver " warm " water, the valve 29 is seated and the supply of solution is stopped. The cone-shaped valve members may be replaced by a sleeve-shaped member. The suction in the water supply pipe also controls the supply of fuel to the burner. In a modification, a valve controlling the supply of solution is operated by the spindle of the water outlet valve through a spring-pressed diaphragm acted upon by the suction in the water supply pipe, and in a further modification, a valve controlling the supply of solution is operated in conjunction with the suction control by a temperature sensitive device attached to the tubes of the heater.
Patent GB-427011-A (GB)
Title: Improvements in electric switches, suitable for use with overhead transmission lines
IPC: H01H31/24
Filed: 1933-10-14
Abstract: 427,011. High - tension switches. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and BREEZE, H. W., 132, Wrotham Road, Gravesend, Kent. Oct. 14, 1933, No. 7678/35. Divided out of 426,968. [Class 38 (v)] In an outdoor switch for use with overhead transmission lines each movable contact comprises a blade 2 mounted loosely between two insulating bars 3 and passing through apertures in a box-like member 5 surrounding the bars 3 and held in position by a bolt 4 which passes through all of the members 2, 3 and 5. The blade 2 is loose on the bolt 4 and is loosely held by spring washers. In the switch shown in Fig. 1, four movable contact blades 2 are mounted between two bars 3 which are slidable in guides 8 bolted to longitudinal angle irons 11 joined at their ends by cross-bars 12 bolted to a pole 21. Corresponding pairs of fixed spring contact clips 1 are carried on insulators 9 bolted by means of U-bolts 13 to cross-bars 10 fixed to the angle irons 11. Clamps 16 are provided for connecting a lead wire from overhead wires to the contacts 1. The lower end of the bars 3 carries a rod 23 which is slidable inside a tube 24 having a slot 26 engageable with a pin 25 on the rod 23. A compression spring 29 is mounted between the tube 24 and rod 23 so that on pushing a handle 27 upwards the spring is strained until the lower end of slot 26 engages pin 25 to overcome the friction of the contacts, when the spring acts to give a quick break. The switch is held in the open position by the engagement of a notch (not shown) on the handle 27 with a bracket 28 under the influence of a pair of coil springs connected between the handle and the bracket. The movement of the bars 3 is limited by stops 30 engaging the guides 8. Specification 426,968 is referred to.
Patent GB-687157-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: COLE REGINALD ALEXANDER LISTER
IPC: H01J29/52
Filed: 1950-03-28
Abstract: 687,157. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1950. No. 7721/50. Class 39(i) An electron gun comprises a first anode focusing an electron beam to a first cross-over, a further system reforming the beam to a second cross-over at high potential in the central aperture of a second anode and means for shielding the beam up to first cross-over from extraneous fields and the further system, the electrodes being dimensioned and positioned so that a fully space charge limited beam with a constant cross-section of current density is obtained, and a modulating potential can be applied to the first anode without affecting the position and shape of the first cross-over. The cathode 10 is surrounded by a cylindrical electrode 14 with a flanged base, and the first anode 17 is formed as re-entrant frusto-conical portion of a sheet metal member 18 fitting in a cylinder 13. A centrally apertured shielding disc 19 closes the end of the cylinder 13 and a cylindrical shield electrode 20 with end plate 21 is held in alignment with the cylinder 13 by insulating bridge members 23. A cup-shaped second anode 24, 25 is held in position by ceramic bridges 26, spring fingers 27 spacing the assembly and connecting it to the wall coating of the cathode ray tube in which the gun is mounted. The beam 31 from the cathode is brought to a first cross-over at 32 and to a second cross-over 33 in the aperture of the anode 24. The voltage on cylinders 13, 14 and the first and second anode and the dimensions of the cathode and anode apertures are specified. The second cross-over is focused by magnetic means on to the fluorescent screen of the tube.
Patent GB-576200-A (GB)
Title: Improvements relating to slidable and releasable hoods for aircraft
IPC: B64C1/32
Filed: 1944-04-25
Abstract: 576,200. Fuselages; emergency fittings. MALCOLM Ltd., R., and LOBELLE, M. J. O. April 25, 1944, No. 7730. [Class 4] A sliding hood construction for aircraft has a releasable canopy part, secured at each side by detachable connections to the side rails of the hood proper; the connections include claws at each side engaging pegs on the canopy and released simultaneously by a single lever. In Fig. 1 the canopy 21 is shown detached from the sliding hood proper 20 with side rails 27, 27<1> sliding on fixed guides at each side of the fuselage and provided with releasable means for locking them in selected positions. The lower edges of the canopy carry inwardly-projecting pegs 28 'engaging in slots formed in channel members 52, shown in elevation, Fig. 2, where they are locked to the member 52 by pivoted claws 30, which can be released by operation of lever 78 (connected to a cable) to slide back a rod 50 linked to the claws 30 so as to turn them for release of the pegs 28 for jettisoning the canopy. Before the canopy has been jettisoned, the locking-means for the sliding side rails 27, 27<1> of the sliding hood proper 20, and which comprise latchbolts 32 on parts sliding in boxes below the vertical slides 45, are capable of release for allowing sliding of the hood 20, by means of a lever 38, pivoted at the top front end of the canopy 21 and which operates cables connected to slides 45. The connection between the slides 45 and the upper ends of the parts carrying the bolts 32 is made by a bolt 48, engaging in eyes on the two members to be connected and being formed on the end of the rod 50 which is slid backwardly in jettisoning the canopy and carries with it the bolt 48 to break the connection. Inward projections from the bolts 32 are provided for lifting them directly by hand.
Patent GB-473323-A (GB)
Title: Improvements in or relating to colour television and the like
IPC: H04N9/22
Filed: 1936-04-09
Abstract: 473,323. Television. BAIRD TELEVISION, Ltd., and BAIRD, J. L. April 9, 1936, No. 7749/37. Divided out of 473,303. [Class 40 (iii)] In a colour-tele vision system the screen 1 of a cathoderay tube at the re ceiver is viewed through a revolving disc 2 divided into coloured sectors or filters 4, 5, 6, preferably red, green and blue, the phase and speed of rotation of the disc being arranged so that the screen is viewed through the red filter when the red component is being reconstituted and so on. A disc fitted with only two coloured filters may be employed and, in all cases, co-operates with a correspondingly coloured and synchronized disc at the transmitter. Preferably the disc is rotated in a direction corresponding with the direction of the low frequency component of scanning, while reciprocating filters may be substituted for the rotating disc. If desired, the image of the screen 1 may be optically projected through filters on to a viewing screen.
Patent GB-673661-A (GB)
Title: Improvements in the production of grids for use in x-ray photography
IPC: G21K1/02
Filed: 1949-03-22
Abstract: 673,661. X-ray diaphragms. ELECTRONIC & X-RAY APPLICATIONS, Ltd., TUNNICLIFFE, E. A. J., and MATTHEWS, H. C. H. March 21, 1950 [March 22, 1949], No. 7826/49. Class 98 (i). An X-ray grid is produced by a method which consists in applying to a support 1 which is electrically conductive and transparent to X-rays a material 2 which is engravable and non-conductive, in engraving the desired grid form in the material down to the support, and then electrolytically depositing in the engraving material 4 which is opaque to X-rays. The engravable material may be removed and replaced by material which is transparent to X-rays and supports the material 4, or it may remain, in which case it must be itself transparent to X-rays. The support 1 may be made of aluminium or a plastic rendered electrically conductive, and the engravable material 2 applied thereto consists of wax, preferably of the kind used in the gramophone-record industry. The grid pattern may comprise parallel opaque strips 4, e.g. 0.001 to 0.002 inches thick with 50 strips per inch; but any other pattern such as a honeycomb pattern can be used. The strips may have varying inclinations to conform to the angle of approach of the X-ray beam. According to the Provisional Specification, the X-ray opaque material may be introduced into the engraving by wiping a solution over the engraved surface. Specification 633,693 is referred to.
Patent GB-350035-A (GB)
Title: Process and apparatus for treating liquid furnace-material
IPC: C04B5/00
Filed: 1930-03-11
Abstract: 350,035. Treating slag. SCHOL, C. H., Allendorf, Dillkreis, Germany. March 11, 1930, No. 7878. Convention date, Jan. 28. [Class 22.] Molten slag and the like is converted into a porous mass by being poured on to a slowly rotating wheel a having in its periphery a number of shallow bowl-shaped cavities b in which the slag &c. is brought into contact with water or other'swelling agent which may be liquid, vapour or gas. The mass overflows the edges of the cavities and forms an uninterrupted band. Specification 294,175, [Class 22, Cements &c.], is referred to.
Patent GB-975344-A (GB)
Title: Improvements in or relating to refuse incinerators and methods of burning refuse
IPC: F23G5/20
Filed: 1961-03-03
Abstract: 975,344. Incinerators. L. VON ROLL A.G. March 3, 1961 [March 3, 19601, No. 7914/61. Heading F4B. Refuse is fed at a controlled rate to a drying surface impervious to gas to form a thin layer, and thence fed to a separate combustion grate positioned so that the refuse on the drying surface receives radiant heat from the combustion grate and the furnace arch. Refuse from a hopper 2 is fed at a controlled rate by a plunger 3 to a drying cylinder 5, rotating at a controlled speed to feed the refuse to a travelling grate 9. Air is supplied below the grate 9, and a burner 17 above the grate assists the combination. In a modification, Fig. 2, the feed plunger is replaced by a movable step grate 3, and the refuse is dried on a second step grate 19. The auxiliary burner 17 is mounted above the drying grate 19.
Patent GB-307834-A (GB)
Title: Method of increasing the electrical conductivity of atmospheres surrounding electric arcs used for heating or welding purposes
IPC: B23K35/36
Filed: 1929-03-11
Abstract: 307,834. I. G. Farbenindustrie Akt.- Ges. March 14, 1928, [Convention date]. Heating by electricity.-The conductivity of a heating or welding arc, which may operate in a protective gas, is increased by the introduction of potassium salts or salts of other alkali metals of higher atomic weight in a finely divided state, in admixture or chemical combination with oxygen compounds of titanium, uranium, molybdenum, tungsten, chromium, aluminium, or iron. The salts may be applied to the electrodes as a coating, or in the case of hollow electrodes as a filling. In welding, the salts may be applied to the work or an additional electrode or may be introduced into an oxyhydrogen flame employed in conjunction with the arc. Potassium titanate is referred to as a suitable salt. The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of potassium salts alone. Potassium ferro-cyanide or a mixture of potassium salts with titanic acid an chromium suque-oxide are also referred to. This subjectmatter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 3762/11; and 167,399, [Class 83 (iv), Metals, Working].
Patent GB-232197-A (GB)
Title: Improvements in or relating to electrical connecting devices
IPC: H01R25/00
Filed: 1925-03-25
Abstract: 232,197. Silfversparre, C. A. April 8, 1924, [Convention date]. Plug-boards. - A distribution block to receive plug contacts comprises a series of contact pieces 5, 6 sliding in an insulating guide 1 and pressed together by springs 8 or screws, the adjacent faces of the contact pieces having grooves 15 that form sockets to receive the plug 19 inserted through a slot 14 in the guide. The end-pieces 5 are recessed at 9 to receive the springs 8, one of which forms electrical connection between the piece 5 and a contact block 10 with terminal screw 12. The springs may be arranged at one or both ends of the contact pieces, or intermediately. Rollers may be employed in place of the pieces 5, 6, 7, and may be grooved to form sockets. According to the Specification as open to inspection under Sect. 91 (3) (a) the contact pieces 5, 6, 7 are arranged in sets, separated by insulating material 13, Fig. 3 (Cancelled), each set forming two sockets 15. A flexible lead may connect the end contact piece to the terminal. Instead of being arranged in a double row as shown, the contact pieces may be in a single row with a terminal at each end. This subject-matter does not appear in the Specification as accepted.
Patent GB-456955-A (GB)
Title: Plant for the manufacture of tarry, bituminous and analogous emulsions
IPC: E01C19/45
Filed: 1936-03-18
Abstract: <PICT:0456955/III/1> <PICT:0456955/III/2> Plant for the manufacture of tarry, bituminous, and similar emulsions comprises a movable melting apparatus heated by an inner furnace which is surrounded by an oil circulation chamber immersed in the material, e.g. bitumen, to be melted and two stations, either stationary or movable, for preparing the hot emulsifying solution and for preparing the emulsion and which are heated by oil circulated from the chamber surrounding the furnace.  In the arrangement shown, the furnace and its associated oil jacket heated by a masut burner 1 is placed in the tank 11 for melting the bitumen.  Oil is fed via pipe 5 to heating elements in tanks 6 and 7 to heat water for the preparation of the emulsifying agent. From there it is fed via pipe 8, expansion vessel 8<1> and pump 9 to a flat coiled pipe 10 forming a false bottom in the tank 11.  The pipe 10 supports the bitumen containers, and preheats them.  The oil flows from pipe 10 back to the furnace.  A pump, also heated by the oil circulating system, is provided to stir the bitumen in tank 11 and convey it to the emulsifying apparatus. The emulsifying agent is prepared in a mixing tank 15, from which it is fed to tank 6 where it is heated and passed to a storage tank 7 in which it is kept at the required temperature.  Molten bitumen is conveyed to tank 21, heated by oil pipes 21<1>, and the emulsifying agent is fed to a similar tank 22 via pipe 20. These reagents are then withdrawn from the tanks in the desired proportions by a volumetric pump (not shown) and dispersed in a turbine 22<1> from which it is passed to a storage tank 24 located under tank 7. Pyrometers are provided to measure temperatures at various points in the plant.  The tank 6 is preferably heated by the passage of oil through a number of parallel tubes immersed in the liquid, and the temperature in tank 7 is maintained by oil circulation through a flat coiled tube.
Patent GB-837716-A (GB)
Title: Improvements in or relating to monoazo dyestuffs derived from aminopyrazoles and their metal complex compounds
IPC: C09B45/14
Filed: 1958-03-13
Abstract: The invention comprises dyes of formula <FORM:0837716/IV(c)/1> where X is a metallizable substituent o to the diazo group, y is H or Me, A is the residue of a diazo component of the benzene series and R a mono- or di-nuclear aromatic residue, and their 1,2-metal complexes. Preferred are dyes which in their metal-free form are of formula <FORM:0837716/IV(c)/2> where Z-H is OH or COOH, w is H or a sulphonamide group which may be substituted and V is H or Cl.  Cobalt and chromium are preferred metals.  The dyes are made by coupling appropriate diazo compounds with the requisite 5-aminopyrazole and metallizing if desired.  Metallization may be effected in substance or on the fibre.  Preferably X is OH, HrO or COOH.  Indicated as substituents for A and R are chlorine, bromine, acetyl-, carbomethoxy-and carboethoxy-amino, methyl, ethyl, tertbutyl, methoxy, sulpho, sulphonamido, methyl-, dimethyl -, 21 - hydroxyethyl -, di - 21 - hydroxy - ethyl -, hydroxypropyl -, methoxypropyl -, phenyl - and 21 - carboxyphenyl-sulphonamido and methyl- and ethyl-sulphonyl groups.  The dyes colour wool, silk, leather and polyamide fibres by the one-bath chrome or afterchrome processes in orange or brown shades.  The metal dyes colour the above fibres from neutral or weakly acid baths in similar shades.  Dyes which are soluble in organic solvents are used in the mass dyeing of artificial fibres, and colour paint and lacquer media and plastic moulding compounds. Examples are provided of the preparation of the dyes and their metal complexes and the use of the latter in various dyeing processes including the preparation of a coloured solution of cellulose acetate for a spinning unit.  Compounds corresponding to A used in the examples contain as substituents additional to those indicated above 21-ethoxyethyl -, isopropyl -, isopropylpropyl, 41 - methyl - and - methoxy - phenyl - and benzylsulphonamido and methylsulphonylamido groups, the groups corresponding to R being phenyl with nitro, bromo, chloro, methyl, methoxy, sulpho, sulphonamido, sulphon-phenyl - and - cyclohexyl - amido, acetylamino, methylsulphonyl, and methyl- and phenyl-sulphonylamino groups as substituents and residues of a naphthyl sulphonic acid and 21,31-tetramethylenephenyl - 41 - sulphon - methyl - and -di-methylamides.
Patent GB-766992-A (GB)
Title: Improvements in or relating to the production of heparin
Inventor: BURFOOT ERIC ARTHUR
IPC: C08B37/10
Filed: 1954-03-19
Abstract: An alkali metal salt of heparin is freed from coloured impurities by heating the salt at a temperature within the range of 60 DEG  to 90 DEG  C. and at a pH within the range of 8.0 to 8.5 in aqueous medium with an alkali metal salt of permanganic acid and separating the solution of heparin salt from the precipitated manganese compounds. The solid heparin salt may be recovered from the solution, e.g. by pouring the solution into an excess of alcohol.  A convenient reaction temperature is approximately 80 DEG  C., and a convenient strength of heparin salt solution is approximately 5000 units of heparin per cubic centimetre.  When sodium permanganate is employed in the above process, it is preferable to use approximately 1 gram mol. of permanganate to decolorize 100,000,000 units of heparin salt. The above process also serves partially to remove pyrogens.  In order to ensure complete removal of pyrogens it is necessary to further treat the solution obtained above, e.g. by treatment with active charcoal, filtration through a cellulose packing, or by using the process of Specification 766,993.  In the example the sodium salt of heparin is treated by the above process, the solution being first filtered through a bed of kieselguhr.ALSO:An aqueous solution of an alkali metal salt of heparin is freed from coloured impurities and partially freed from pyrogens by heating the solution at a temperature within the range of 60 to 90 DEG C. and at a pH within the range of 8.0 to 8.5 in the presence of an alkali metal salt of permanganic acid and separating the solution of heparin salt from the precipitated manganese compounds.  A convenient reaction temperature is approximately 80 DEG C., and a convenient strength of heparin salt solution is approximately 5000 units of heparin per cubic centimetre. When sodium permanganate is employed in the above process, it is preferable to use approximately 1 gram mole of permanganate to decolourize 100,000,000 units of heparin salt.  In order to ensure complete removal of pyrogens it is necessary to further treat the solution e.g., by treatment with active charcoal, filtration through a cellulose packing or by using the process of Specification 766,993. In the example an aqueous solution of the sodium salt of heparin is treated by the above process, the solution being first filtered through a bed of kieselguhr.
Patent GB-675134-A (GB)
Title: Improvements relating to the manufacture of ceramic dielectric material
IPC: C04B35/468
Filed: 1950-03-31
Abstract: 675,134. Electric condensers. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 31, 1950 [April 22, 1949], No. 8173/50. Class 37. [Also in Group V] Dielectric ceramics are prepared from barium titanate and up to 10 per cent by weight of a fluoride of the alkaline earths magnesium or lead, by firing a shaped body thereof completely embedded in granulated zirconia. Binders or lubricants may also be present, e.g. paraffin and water emulsion, paraffin in carbon tetrachloride, or a polyvinyl alcohol-water solution. The fired material is made into discs to which silver paste is applied and heated to deposit metal thereon, leads being then soldered thereto.