baber/WOPTO huggingface dataset:
Patent GB-1279627-A (GB)
Title: Improvements in or relating to optical projection screens
Inventor: STROUD WILLIAM DERRICK
IPC: G03B21/60
Filed: 1968-07-12
Abstract: 1279627 Projection screens W G STROUD M JONES and V T WILLIAMS 7 July 1969 [12 July 1968] 33257/68 Heading G2A A projection screen which may be concavely curved consists of a rolled sheet 10 of steel or other metal with a roughened surface coated with a reflective metallic layer which retains a texture derived from the roughened surface, the screen being mounted on a rigid support frame 11 of timber. The roughened surface may be produced by rolling the sheet with shot-blasted rollers, the surface then being electrolytically tinned. A reinforcing backing may be applied to the sheet.
Patent GB-387459-A (GB)
Title: Improvements in distilling or concentrating liquids
IPC: B01D3/00
Filed: 1931-12-01
Abstract: Liquids, particularly tars and oils, are distilled or concentrated by passing the liquid with a gas or vapour other than the vapours distilled from the liquid through a heated pipe, the velocity of the added gas or vapour being not less than the critical velocity for producing turbulent flow.  Coal tar is passed into a pipe A at the rate of 6 galls. per hour and mixed with coal gas supplied from a pipe B at 540 cu. ft. per hour.  The mixture is passed through a coil C 30 feet long and 1 inch in diameter and the coil is heated to 280-300 DEG  C. by combustion gasses passing through a duct G. Residual liquid is suspended in a vessel D and the vapours evolved are condensed in a cooler K, <PICT:0387459/III/1> the gases being recirculated by a pump L.  The process is also suitable for the distillation or concentration of glycerine, sugar, milk, and similar organic products.
Patent GB-392246-A (GB)
Title: Improvements relating to cementitious surfacing materials
IPC: C04B28/02
Filed: 1931-12-02
Abstract: A composition which may be sprayed to provide a glossy surface consists of Portland or like cement containing a small proportion, such as 0,05 per cent, of saponin.  The mixture may also contain magnesia, magnesium chloride, calcium chloride, a calcium soap, and finely pulverized quartz, sand or pigments.  Absorbtive surfaces may be pretreated with a mixture of equal weights of 30 per cent latex and 5 per cent soft soap solution.  The final surface may be waterproofed by adding to the mix 3 per cent of calcium soap and rendered greaseproof by spraying with a solution of casein and formalin.ALSO:A composition which may be sprayed to provide a glossy surface consists of Portland or like cement containing a small proportion, such as 0,05 per cent, of saponin.  The mixture may also contain magnesia, magnesium chloride, calcium chloride, a calcium soap and finely pulverised quartz, sand or pigments.  Absorbtive surfaces may be pretreated with a mixture of equal weights of 30 per cent latex and 5 per cent soft soap solution.  The final surface may be waterproofed by adding to the mix 3 per cent of calcium soap and rendered greaseproof by spraying with a solution of casein and formalin.
Patent GB-794474-A (GB)
Title: Magnesium alloy
IPC: C22C23/04
Filed: 1956-11-01
Abstract: A magnesium-base alloy contains zinc, 3.25 to 5 per cent; zirconium, 0.2 to 0.8 per cent; mischmetal, at least 0.15 of the zinc percentage, minus 0.4, but not in excess of 0.7 per cent weight of the alloy, the balance of the alloy being magnesium, and the zirconium in the alloy being soluble in hydrochloric acid. The alloys may be rolled in the temperature range of 700 DEG  to 900 DEG F. and exhibit both high tensile compressive and corrosion resistant properties.
Patent GB-683961-A (GB)
Title: Improved means for securing railway rails to sleepers
IPC: E01B9/34
Filed: 1949-12-30
Abstract: 683,961. Securing railway rails. ELASTIC RAIL SPIKE CO., Ltd., and THOMPSON, H.E. Dec. 12, 1950. [Dec. 30, 1949; Feb. 6, 1950] Nos. 33434/49 and 3017/50. Class 104 (ii), In a means for securing a railway rail to a rail foundation by exerting a downward thrust on a resilient clip of which one end bears on the rail and the other end on the rail foundation the clip. is located between a pair of projections provided on the rail foundation and formed with perforations for supporting a pin imparting the downward thrust to the clip. The clip 4 arranged between arms 3b of two angle brackets 3 is pressed downwards by an oval portion 6a of a pin 6 when the pin is partially rotated. The pin 6 has also two cylindrical portions 6b about which it is rotated when in position within oval openings 5 formed in the arms 3b, a head portion 6c to prevent the pin (i passing though the openings 5 and a radial projection 6d at the other end to prevent withdrawal of the pin 6 from holes 5 when the major axis of the oval portion 6a is vertical. The pin is rotated by inserting the end of a bar into a slit 6c intermediate its ends. The two angle brackets 3 may be replaced by a U-shaped member Fig. 6 (not shown). The arrangement may comprise a clip 4 on each side of the rail, as shown in Fig. 2, or one such clip as in Fig. 7, (not shown), arms of the opposite bracket, being then provided with recess to engage the rail foot. Cylindrical pin, Fig. 9, (not shown) tapered at one end may be used in place of the pin 6 shown in Fig. 2. According to the Provisional Specification the rail may be held in position by forcing the clip under a bar welded to the top edges of arms 3b until it abuts a stop bar 7 welded to the rear edges of arms 3b. The clips may be formed from single or laminated strip and the apparatus may be used with steel or wooden sleepers arranged transverse to or in the direction of the rails.
Patent GB-842821-A (GB)
Title: Fuel oil additive
IPC: C10L1/12
Filed: 1958-10-21
Abstract: An additive composition for residual fuel oils, for retarding ash deposition during their combustion, comprises a homogeneous solution of an oil-soluble organic silicate and an aromatic solvent such as a substituted naphthalene or disubstituted benzene which has the capacity to actively disperse petroleum sludge. This dispersive activity, which is further exemplified by the dispersion of carbon black in diesel oil using a composition of the invention, is said to be characteristic of aromatic solvents which assist in producing a more homogeneous solution of the silicate in the residual fuel oil. The silicate and solvent may be present in approximately equal amounts by weight or in a ratio of 1:4 to 1:5.  Silicates exemplified are tetraethyl orthosilicate and mixed ethyl polysilicates containing an average of five silicon atoms per molecule, these silicates providing respectively about 28% and 40% available SiO2.  Aromatic solvents include (i) aromatic solvent mixtures which contain alpha- and/or beta-methyl naphthalene fractions originating from coal tar such as creosote oil or from petroleum sources, (ii) purified methyl naphthalenes such as alpha-methyl naphthalene, beta-methyl naphthalene, mixtures of these and derivatives thereof such as dimethyl- or trimethyl-naphthalene, alphaand/or beta-ethyl naphthalene, and (iii) disubstituted benzenes such as orthodichlorobenzene.  Sufficient additive is used in the fuel oil to provide one part by weight of SiO2 to each 2 to 4 parts by weight of ash in the fuel oil.
Patent GB-1392514-A (GB)
Title: Thin film deposition of rare earth garnets
IPC: H01F41/22
Filed: 1972-07-18
Abstract: 1392514 Deposition of rare-earth garnets PLESSEY CO Ltd 25 May 1973 [18 July 1972] 33643/72 Heading C1A A method of making a rare-earth magnetic garnet by deposition of constituents of the garnet on to a substrate from a gaseous mixture of the chlorides of the constituents comprises an initial stage in which the chlorides of all the constituents are prepared from the constituents by heating the constituents in an inert atmosphere to a temperature at which the chlorides occupy the gaseous state and by passing chlorine over each of the heated constituents individually, whereby the chlorides are formed in individually adjustable quantities and are used immediately after formation; a mixing stage in which the gaseous chlorides are mixed in the inert atmosphere, and a deposition stage in which the constituents of the garnet in the presence of oxygen are deposited on the substrate. Exemplified is a process and apparatus for making an yttrium, iron, gallium containing garnet.
Patent GB-354645-A (GB)
Title: Improvements relating to corn storage barns
IPC: E04H5/08
Filed: 1930-11-08
Abstract: 354,645. Vermin guards. COWIESON, F. D., Kilmaronock House, Drymen, Dumbartonshire. Nov. 8, 1930, No. 33671. [Class 5 (i).] A vermin guard for stacks comprises a dished plate 4 placed at the head of each stack support 2 so that its marginal edges overhang the lateral edges of the support.
Patent GB-974958-A (GB)
Title: Fluid metering device
Inventor: TYLER STANLEY RALPH
IPC: F04D15/00
Filed: 1962-09-03
Abstract: 974,958. Valves. DOWTY FUEL SYTEMS Ltd. Aug. 30, 1963 [Sept. 3, 1962], No. 33754/62. Heading F2V. [Also in Division F1] A variable area fluid metering device comprises a first valve member 15, a second valve member 16 movable relatively to the first valve member along an axis and angularly about the axis to define a variable area orifice, and an actuator for the second valve member for movement thereof in a unique path relative to the first valve member within which axial and angular movements take place in varying proportions over the unique path, means being associated with the actuator and second valve member to ensure that the ratio between incremental actuator movement and the resulting area change of the orifice becomes smaller with increase in orifice area. In the preferred embodiment, the device controls the inlet to a centrifugal pump delivering liquid fuel to a gas turbine and has the second valve member 16 connected to a servo-piston 28 by a link 23 and a piston-rod 31, the link 23 having a spherical connection with the valve member 16. The valve is closed when the link is in the dotted line position shown in Fig. 1 and has an initial opening movement which is entirely angular and causes separation of the edges of lobes 35 from curved edges 36. During further opening the sleeve 16 moves axially as well as angularly to give an approximately exponential relation between actuator movement and orifice area. Ball joints may be used at both ends of the link 23 and the movable valve member may comprise a mushroom valve supported by a stem movable axially and angularly relatively to a fixed seating.
Patent GB-175781-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C11/18
Filed: 1920-11-30
Abstract: 175,781. Bishop, J. G. Nov. 30, 1920. Tread bands, projections, and surfaces. - A tread surface for a pneumatic tyre consists of a ring b of soft rubber (which may be continuous or in spaced sections) separately formed from two or more rings c of harder rubber, all the rings being vulcanized directly to the fabric foundation a of the tyre.
Patent GB-475540-A (GB)
Title: Improvements in gilled heat exchange tubes
IPC: F28F1/30
Filed: 1936-05-22
Abstract: 475,540. Gilled tubes for heat - exchangers. GREEN & SON, Ltd., E. (Foster Wheeler Corporation) May 22, 1936, No. 33934. Divided out of 475,526 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 25, 1936. [Class 64 (iii)] The securing rings 12 of the flanged gills of a heat-exchange tube are protected from the action of fluids passing over the gills by shrouds 13 of non-corrosive metal. In a modification the gills are secured by straps 14, Fig. 3, provided with a protective plating 16. Specification 475,526 is referred to.
Patent GB-806418-A (GB)
Title: Method of and apparatus for classifying cylindrical items
IPC: B07B13/00
Filed: 1956-11-07
Abstract: 806,418. Separating solid materials. UNION CARBIDE CORPORATION. Nov. 7, 1956 [Dec. 6, 1955], No. 33969/56. Class 117 Cooked and chilled frankfurters 14 are conveyed by a belt 12 from an automatic skin peeling machine 10 to an inclined vibrated plate 16, and those frankfurters 14a which have not been peeled slide over the plate to a receptacle 20 whilst the remainder 14b are arrested on the plate due to their higher co-efficient of friction, and then roll transversely on to a conveyer 22. An adjustable guide 36 is attached to the plate 16. Instead of the plate an endless belt 40, Fig. 4, may be employed and actuated by a handle 46, when necessary, to bring a clean surface into operation. Alternatively, the belt may be mechanically driven continuously or intermittently.
Patent GB-771241-A (GB)
Title: Improvements in or relating to gripping devices
IPC: B67B7/18
Filed: 1953-12-08
Abstract: 771,241. Wrenches. SCHOFIELD, H. P. March 7, 1955 [Dec..8, 1953], No. 34068/53. Class 61  A device for gripping a screw cap or other object for the purpose of preventing rotation comprises a sheet metal plate 14, having downwardly projecting flanges 12, 13 and a longitudinal slot 18 in which is guided a pin 21 carrying a toothed eccentric member 20 having a handle lever 24. The slot has ratchet teeth 19. along one edge for engagement by a pawl 25 pivoted on the pin 21. The pawl 25 is loosely mounted on the pin 21 being frictionally held for rotation with the cam until restricted by the edges of the slot.
Patent GB-386101-A (GB)
Title: Apparatus for producing coatings from lacquers, stand oils, lacquer paints, stand oil paints and rust protective paints
IPC: B05B7/16
Filed: 1931-12-09
Abstract: <PICT:0386101/III/1> Lacquers, stand oils, paints and other viscid materials for coating surfaces are sprayed without a diluent by supplying them from a heated container to an atomizing nozzle from which they are ejected through a flame which also may be employed to heat the surface to be coated.  The material is contained in an electrically heated container 1 from whence it passes to an electrically heated tube 6 terminated in a needle valve controlled nozzle.  Compressed air controlled by a valve 5 is supplied through a passage 4 to the top of the container 1 and also to a nozzle surrounding the paint nozzle.  The atomized liquid is ejected through a burner nozzle 13 supplied with combustible gas through a passage 12.  To prevent the paint burning, the inner zone of the flame is cooled by the passage of air through a nozzle 14, the pressure of which is less than that of the atomizing air. Specification 275,477, [Class 95, Paints &c.], is referred to.
Patent GB-749137-A (GB)
Title: Improved means for helically lapping a string or similar member on a wire or equivalent member
Inventor: BURR HARVEY
IPC: H01B13/20
Filed: 1953-12-08
Abstract: 749,137. Covering wire cores with string. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Dec. 7, 1954 [Dec. 8, 1953], No. 34121/53. Class 109. Apparatus for helically lapping a string 1 from a package 2 on an axially moving wire 3, is furnished with a guide 5 rotatable about the path of the wire, the guide being carried by a plate 16 driven by a gear 15 and hollow spindle 14, the string being lapped firstly about a smooth, cylindrical stationary body 12 about the surface of which rotates, in close proximity thereto, a helical guiding member 18 which spaces the turns of string and advances them towards a device 7 comprising a plate 19, grooved at 20 to contain the wire and string, a spring-pressed plate 21 bearing upon the wrapped wire with adjustable force. The dimensions of the body 12 and spacing of the helices are so chosen that there is virtually no tension in the string as it passes from the body 12 on to the wire 3 in the device 7. The package 2 is held against a spring-urged concave plate 33 so as to give a substantially uniform braking force upon the package as it unwinds.
Patent GB-404797-A (GB)
Title: Improvements in or relating to the heat-treatment of manganese hard steel objects
IPC: C21D6/00
Filed: 1932-12-02
Abstract: 404,797. Heat-treating manganese steel ; crusher jaws. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Krupp Grusonwerk Akt.-Ges., F. ; Buckau, Magdeburg, Germany.) Dec. 2, 1932, No. 34212. [Classes 59 and 72.] In the heat treatment of articles of manganese steel, the whole article is heated to at least 1000‹ C. and the portions of the article which in practice are subjected to pressure and wear are then cooled down slowly by means of compressed air, steam or other gently acting cooling medium so as to produce an austeritic carbide structure in those parts and the whole article is then quenched. The parts of the articles are generally cooled to below 920‹ C. before quenching. As applied to the treatment of a crusher jaw, the jaw 6 heated to about 1000‹ C. is placed on rollers 4 mounted in a box 5, and the teeth of the jaw are cooled by compressed air issuing from holes 2 in the upper surface of a box 1 connected to a supply conduit 3. The temperature of the other side of the crusher is kept at at least 1000‹ C. and when the teeth have cooled down to below 920‹ C., the whole jaw is quenched, thus producing a tough austenitic rear side and have teoth having a hard austeritic carbide structure which may also contain martensite.
Patent GB-959386-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: HORTON CLIFFORD CHARLES
IPC: G21C3/326
Filed: 1960-10-05
Abstract: 959,386. Nuclear fuel elements. ROLLSROYCE Ltd. Sept. 27,1961 [Oct. 5, 1960], No. 34221/60. Heading G6C. A fuel element for a nuclear reactor comprises a hollow casing with an annular array of parallel fuel rods located within the casing and surrounding a central fuel-free region, each fuel rod contacting both the internal wall of the casing and laterally adjacent ones of the fuel rods. Such an arrangement is shown in Fig. 2, twelve fuel rods 10 being disposed about a central rod 11 of a low neutron absorbing material, e.g. beryllium oxide or magnesium oxide, within and contacting the inner wall of a surrounding hollow casing 14. The central rod 11 is enclosed in a steel casing 12 while the fuel rods 10 are housed in sheaths each having an external helical fin 13 contacting the adjacent fuel rods 10, the casing 12 and the hollow casing 14. Instead of having a central rod 11, coolant may flow through the central region enclosed by the fuel rods 10. Compared with a conventional 19- fuel rod cluster which would have an inner ring of fuel rods and a central fuel rod, the fall in neutron flux towards the centre of the cluster is much reduced. Specification 948,909 is referred to.
Patent GB-169120-A (GB)
Title: Improvements in and relating to wheels or pulleys and supports therefor
IPC: B21D53/26
Filed: 1920-12-06
Abstract: 169,120. Steenstrup, C. Dec. 6, 1920. Compression-spoke wheels are made from sheet metal with the rim 10 one jointed strip, the spokes 11 having tenons 15 on their ends, which are upset to unite rim and spokes, one of these tenons also uniting the ends of the rim. The spokes are double, one on each side of the wheel, and each extends across the diameter from rim to rim, so that in a four-spoke wheel there are four spoke pieces. The spoke ends have shoulders 13, Fig. 8, and tenons 15 shaped so that when inserted through straight slots in the rim and hammered or pressed down, the metal flows into the dove-tail form shown in Figs. 2 and 7. The ends 10<1>, Fig. 2, of the rim are united by one pairs of tenons 15. The spokes 11 are strengthened by pressed ribs 12, and discs may replace separate spokes. In forming the hub, a tube or metal band 19, Figs. 5 and 3, is set between the middles of the spoke pairs, and an inner tube or band 20 is passed through this and riveted over at its outer ends to hold the wheel together. A solid bearing axle is threaded through that. In the application to the wheel of a perambulator or toy wagon, the rim is formed with a groove as shown, and a rubber tyre is affixed.
Patent GB-969888-A (GB)
Title: Improvements in or relating to sprocket and chain coupling
IPC: F16D3/54
Filed: 1963-09-02
Abstract: 969,888. Universal joints. T. L. FAWICK. Sept. 2, 1963 [Sept. 7, 1962], No. 34604/63. Heading F2U. In a double chain and sprocket flexible coupling the pairs of links 16, 17 . . . are connected by through pins 19 and each roller R incorporates a rubber or similar resilient bush L bonded to an outer sleeve S and engaging an inner sleeve 18, 118 carried on a pin 19. In a modification, Fig. 3 (not shown), an inner metal bush is interposed between each liner L and sleeve 18, 118.
Patent GB-873516-A (GB)
Title: Improvements relating to the fireproofing of cellulosic and ligno-cellulosic materials
IPC: D06M11/70
Filed: 1957-11-06
Abstract: 873,516. Proofing wood &c. against fire, water, fungi and insects. OMNIUM DE PRODUITS CHIMIQUES POUR L'INDUSTRIE ET L'AGRICULTURE, and ISOREL SOC. POUR LA FABRICATION D'ISOLANTS ET REVETEMENTS LIGNEUX. Nov. 6, 1957 [Nov. 6,1956; Nov. 4, 1957], No. 34638/57. Class 140. Cellulosic materials, particularly wood, wood pulp, panels made from such pulp or similar material, and flax stems for subsequent pulping and making into panels, are fireproofed by treating them with aqueous ammonia solution and thereafter with an aqueous solution containing phosphate ions, e.g. aqueous phosphoric acid or acid ammonium phosphate of a pH such that ammonium phosphate is formed in the material and the latter is substantially neutral. The treatment may be effected by immersion or spraying, and may be intermittent or continuous. Waterproofing of the materials, e.g. with an emulsion of microcrystalline wax precipitated thereon, may be effected before, during, or after fireproofing, with or without drying between the processes. Flax stems, after the fireproofing treatment, may be pulped with microcrystalline wax and urea-formaldehyde resin, and formed into panels. Fungicides or insecticides such as pentachlorphenol or ammonium fluoride may be included in the treating solutions.
Patent GB-933568-A (GB)
Title: An automatic ribbon shift device
IPC: B41J35/18
Filed: 1961-09-27
Abstract: 933,568. Ink ribbon colour shift mechanisms. OLYMPIA WERKE A.G. Sept. 27, 1961 [Oct. 14, 1960], No. 34678/61. Class 100 (4). An automatic " black-red " ribbon shift mechanism in Fig. 1 for an electrically interlocked calculating-machine and a typewriter comprises two electromagnets 20 and 1, acting jointly on the ribbon shift mechanism, which are successively energized, on setting of a register " Sub " of the calculating- machine to subtraction, in such a manner, that a first hinged-armature magnet 20 lifts the actuating armature 5 of a second plunger-armature magnet 1 out of its " black " operational position and, at the same time through a make-contact 25 energizes the second magnet, whereby its actuating armature displaces the ribbon shift mechanism to the " red " position by linkage 8, 11. To set the shift mechanism in Fig. 1, into operation, when a negative sum is to be calculated, the switch " Sub " in Fig. 2 is closed, and the armature of the hinged magnet 20 is actuated via a change-over switch " U " and a normally closed break-contact " R " to close a retaining contact 24, the makecontact 25 and lift the actuating armature 5 into contact with a pin 7 of a lever 8, which is pivoted in an anticlockwise direction by the sliding movement of the actuating armature 5 of the energized plunger magnet 1, to impart a clockwise pivotal movement to a bell-crank lever 13 shifting an actuating bar (not shown) of the ribbon shift from a " black " into a " red " operating position. At the end of the sliding movement of the actuating armature 5 a projection 29 on the former strikes against the break-contact " R," whereupon the magnet 20 becomes de-energized, lowering the armature 5, which is returned to its normal position, indicated in Fig. 1, by the tension spring 27. When the printing in " red " has taken place the change-over switch " U " is changed over by a slider on a programme bar (not shown) and the plunger-armature magnet 1 becomes energized again to attract the actuating armature 5, now in its lower position, which strikes against a pin 6 of the lever 8 to thereby re-set the shift mechanism i.e. return the ribbon from " red " to a normally " black " printing position. The change-over switch " U " is then switched back de-energizing the magnet 1, and the actuating armature 5 is returned by the spring 27 to its normal position and the ribbon shift operation is terminated.