baber/WOPTO huggingface dataset:
Patent GB-1088563-A (GB)
Title: Filter for filtering liquids
IPC: B01D36/02
Filed: 1965-02-09
Abstract: 1,088,563. Leaf filter. FREEPORT SULPHUR CO. Feb. 9, 1965 [Sept. 14, 1964], No. 5661/65. Heading B1D. The linear size of the openings of mesh filter guard screens 40 placed across outlet pipes 28 of a frame 22 containing mesh filter screens 26 is not smaller than 1.2 and not greater than 2.5 times the linear size of the meshes of the filter screens 26 so that guard screens 60 clog up if unfiltered liquid passes a defective filter screen, and thus prevent contamination of filtered liquid in the manifold 16. The guard screen preferably has a total area of from 0.02% to 0.1 % of that of the filter screen, and may be conical or dome shaped and made of wire, glass or cloth. In the embodiment of Fig. 4, guard screen 62 is held between sections 56 and 58. For filtration, diatomaceous earth or clay may be used as a filter aid.
Patent GB-947175-A (GB)
Title: Improvements in or relating to the generation of aspheric surfaces
Inventor: RAWSTRON GEORGE ORMEROD
IPC: B24D13/00
Filed: 1959-02-18
Abstract: 947,175. Turning and grinding aspheric surfaces. RANK PRECISION INDUSTRIES Ltd., [trading as TAYLOR, TAYLOR & HOBSON]. Feb. 15, 1960 [Feb. 18, 1959], No. 5685/59. Headings B3B, B3D and B3T. A method of producing a surface of revolution on a workpiece which deviates from a basic spherical surface by relatively small amounts comprises rotating the workpiece about its axis of symmetry and effecting a relative rotational movement between the workpiece and a tool about a pivotal axis which intersects the axis of symmetry at right angles and at the centre of the basic spherical surface and effecting a relative translational correcting movement between the workpiece and the tool in accordance with the required deviations. The workpiece C, Figs. 1 and 2, which may be a cylindrical block of glass with a surface moulded approximately to the aspheric surface desired, is held in a spindle A<SP>1</SP> rotated by a motor A<SP>4</SP>. The tool D<SP>3</SP>, a pointed diamond or a diamond wheel, is clamped in a holder D which is pivoted at D<SP>1</SP>, Fig. 2, to a. bracket D<SP>2</SP>. The pivotal axis intersects the work-axis at the centre of the basic spherical surface approximating that of the desired aspheric surface. The frame D<SP>2</SP> is secured to a carriage E which can slide on three bearing balls E<SP>1</SP> on guide tracks B<SP>2</SP>, Fig. 1, on a slab B<SP>1</SP> on the base B, the frame D<SP>2</SP> being adjustable along slots E<SP>2</SP>. The carriage E is moved by a lever F and rod F<SP>1</SP> with rounded ends abutting respectively against the lever and against a projection E<SP>3</SP> from the carriage having a fine-adjustment device E<SP>4</SP>. The toolholder D carries a crank-arm D<SP>4</SP> to which is pivoted a driving rod G with fine-adjustment G<SP>1</SP>. The other end of the driving rod G is adjustably pivoted to a crank arm G<SP>8</SP> extending from a vertical spindle H<SP>1</SP> which is driven through worm gearing H<SP>2</SP> by an electric motor H<SP>3</SP>. The spindle H<SP>1</SP> carries a horizontal table H carrying a cam device with which the other end of the lever F co-operates for effecting the axial deviation movements of carriage E. The cam device in one form comprises an adjustable thin steel strip H<SP>4</SP> which is pre-set to the desired form by clamps H <SP>5</SP>. An optical cam device may be employed as described in Specification 936,951 (see Division G1). By shifting the pivots D1, Fig. 4, for the toolholder to a position behind the work, convex surfaces may be formed. Specifications 716,719, 936,952 and 947,174 also are referred to.
Patent GB-511790-A (GB)
Title: Light-sensitive material for colour photography
Filed: 1938-02-23
Abstract: 511,790. Oxindole derivatives. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.). Feb. 23, 1938, No. 5739. [Class 2 (iii)] [Also in Group XX] A light sensitive emulsion layer in colour photographic material contains as colour former, a derivative of oxindole which contains in the molecule a group rendering it fast to diffusion. In one example, the compound is produced by dissolving oxindole in nitrated concentrated sulphuric acid, pouring on ice and reducing with tin and hydrochloric acid. After removal of tin and concentration by evaporation, the reaction product is acylated with oleic acid chloride and sulphonated with fuming sulphuric acid. In other examples, the reaction product is reacted with either octodecvlene-succinic acid anhydride or abietic acid chloride. The dyestuff component is dissolved in sodium carbonate solution and added to silver halide emulsion. Another component is produced by acylating stearylaniline with chloracetyl chloride and heating with aluminium chloride at 200‹ C. to remove hydrochloric acid. The groups which impart fastness to diffusion may be those described in 458,400, 465,823, 479,838, [all in Group XX], 483,000, 484,698, 488,048, 489,093, 489,164, 489,274, 491,958, and 491,959. The oxindole may also contain other desired constituents at the nitrogen atom, e.g., alkyl, alkoxy, aryl, halogen, oxy and nitro groups. The benzene nucleus may carry a fused-on ring or ring system and the molecule may include " solubility " groups such as sulpho, carboxyl or hydroxyl groups. Specification 478,983 and 489,161, [Group XX], also are referred to.
Patent GB-871870-A (GB)
Title: Improved apparatus for feeding washers or other articles
Inventor: STERN WILLIAM
IPC: B65G47/14
Filed: 1958-02-21
Abstract: 871,870. Hopper feed. ILLINOIS TOOL WORKS. Feb. 21, 1958, No. 5753/58. Class 78 (1). Washers from hopper 68 are fed gradually to hopper 20 whence they are fed singly to a nut- and-washer assembly device. Thus, washers are fed in quantity by hand into fixed subsidiary hopper 68 up to the level shown and are fed therefrom through outlet 80 into the bottom corner of fixed main hopper 20 by rotating disc 74, which carries thereon ejecting finger 82. From hopper 20 the washers are fed, discharged singly by rotating disc 32 in the pockets 52 thereof to assembly turret 14 (not shown), the disc 32 being driven from motor 46 (not shown) through worm 42. The washers in hopper 20 are agitated by rotating flexible arms 58, shaft 64 carrying and driving both arms 58 and disc 74 and being driven in turn by the said motor 46. Preferably arms 58 rotate in counterdirection to disc 32. Shield 92 is transparent for visibility purposes.
Patent GB-824157-A (GB)
Title: Process for the production of unsaturated hydrocarbons
IPC: C07C4/02
Filed: 1958-02-25
Abstract: Unsaturated hydrocarbons including acetylene are produced by the thermal cracking of saturated hydrocarbons by injecting the saturated hydrocarbon into the cylinder head of an internal combustion engine working on a fuel-air or fuel-oxygen mixture during or after combustion of the fuel or up to the top dead-centre.  The temperature of reaction can be adjusted by regulation of the fuel-oxygen mixture; if desired a steam-oxygen mixture can be used as the oxidizing component and the composition of this varied as desired.  The reaction time can be varied by the speed of revolution of the engine which should be high enough for the reactants to be expelled before degradation of the products occurs.  The products are passed with the exhaust gas into a receiver where cooling by expansion occurs, further cooling by adding water being effected if desired.  The products can be separated by known methods.  If an excess of oxygen is used in the fuel mixture this excess reacts with the hydrocarbon to give additional product by partial combustion.  The heat given by this exothermic reaction can be used to crack further saturated hydrocarbon in the endothermic cracking reaction.  Ethylene can be formed from ethane and acetylene from methane; other suitable starting materials include cracked gas, liquefied petroleum gas and light petroleum.
Patent GB-572899-A (GB)
Title: Improvements in and relating to filter media
IPC: B01D39/14
Filed: 1943-04-16
Abstract: 572,899. Filtering media. JOHNSON & JOHNSON (GREAT BRITAIN), Ltd. April 16, 1943, No. 6132. Convention date, April 18, 1942. [Class 46] A filter pad which may be placed in a metal strainer on the top of a milk can comprises a soft and flexible sheet-like structure of loosely associated fibres, e.g., carded cotton, in which the surface fibres are bonded by means of a bonding agent applied in very dilute solution with subsequent drying, only the fibres at or near the surface being bonded and these only at the points of contact, the bonds in the final state being non-dispersible' in cold water. This leaves the interior fibres and the interstices between the surface fibres free so that liquid can filter therethrough while the bonding prevents displacement of the fibres whereby holes might be formed through the pad by the eddying liquid. Various bonding agents including artificial resins, gums, starch, alginates, silicates, rubber, shellac, glue, casein, gelatin, albumen, are described some of which are soluble in water but after drying become non-dispersible in cold water.
Patent GB-969778-A (GB)
Title: Improvements in or relating to yarn winding machines
IPC: B65H63/036
Filed: 1961-05-18
Abstract: The subject-matter of this Specification is identical with that described in Specification 969,776 but the claims are concerned with indexing clutch mechanism that gives a positive drive in the absence of yarn beneath the yarn sensing member in the yarn tensioning device.  Specifications 704,931, 969,774, 969,775 and 969,779 also are referred to.
Patent GB-783600-A (GB)
Title: Improvements in or relating to a gas turbine plant
IPC: F02C3/04
Filed: 1955-07-20
Abstract: 783,600. Gas turbine plant. GARRETT CORPORATION. July 20, 1955 [July 30, 1954], No. 6144/56. Divided out of 783,599. Drawings to Specification. Class 110 (3). A gas turbine plant comprising a compressor which supplies air to a combustion chamber feeding a turbine driving the compressor has a manual starting crank and a starting torch to supply starting heat to the combustion chamber. The subject-matter of this Specification is identical with that described in Specification 783,599, but the claims differ.
Patent GB-801649-A (GB)
Title: Improvements in or relating to conveying mechanism
Inventor: DOLLE DAVID E
IPC: B65G47/54
Filed: 1957-02-25
Abstract: 801,649. Conveyers. WEAN EQUIPMENT CORPORATION. Feb. 25, 1957, No. 6206/57. Class 78 (1). In conveyer apparatus including first and second conveyers in which at least a portion of the first conveyer is vertically movable relative to the second conveyer to effect transfer of articles from the second conveyer to the first conveyer, the second conveyer is also adapted for vertical movement but rests on a fixed support when the first conveyer is in the lower position, and is adapted to be raised by the first conveyer after the supporting surface of the latter has risen above that of the second conveyer. As shown, the first conveyer is a rollerway comprising groups of driven rollers 6 carried in journals on a frame 4 secured to the piston 3 of a vertical fluid-pressure cylinder 2. The second conveyer comprises series of rollers 10 with their axes at right angles to those of the rollers 6 and which are disposed in the gaps between the groups of rollers 6. Rollers 10 are carried on a frame 9 which, when frame 4 is in lowered position; rests on fixed supports 8. Guide pins 12 depend from the frame 9 and engage apertures in members 14 of the frame 4. In 'operation, articles of sheet form are delivered along the rollers 10 against a stop 11 carried by the frame 9, the rollers 10 being disposed on an incline. Cylinder 2 is then operated to raise the frame 4 so that the sheets are received on the driven rollers 6. As the rollers 6 rise above the rollers 10 the frame 4 engages the frame 9 and the two frames rise together so that the cylinder 2 may continue to raise the frame 4.
Patent GB-543881-A (GB)
Title: Improvements in parallel rules
IPC: G01B3/02
Filed: 1941-05-16
Abstract: 543,881. Protractors; parallel rulers. MACLEAN, J. D. May 16, 1941, No. 6311. [Class 97 (iii)] A parallel ruler and protractor, the edge of which is marked from 0 degrees to 360 degrees, is provided adjacent each end with a transverse slot C with an edge permitting of the application of complementary degree markings and figures. Fig. 1 shows a parallel ruler of the roller type having rollers on the under surface and the transverse slots C having the edge D marked with the complementary degree markings and figures. Fig. 3 shows the split type with links I. The degree markings are on the under surface of the ruler or on a plate the ruler or its edge being transparent to obviate parallax.
Patent GB-659637-A (GB)
Title: Method for preventing the shedding of hair from pelts and hides
IPC: C14C15/00
Filed: 1949-03-09
Abstract: 659,637. Fixation of hairs or scales on hides or skins. RUBBISSON, G. A. March 9, 1949, No. 6438. [Class 76] The shedding of hair from the pores of furs or hairy hides of animals is prevented by applying latex or a solution of natural or artificial rubber on the smooth side of the furs or the like, forcibly introducing the solution or latex into the pores by having a lower gas pressure on the hairy side than on the smooth side and then vulcanizing the rubber. As shown, the process may be carried out in an apparatus having a bottom casing 10 and top plate 11 on which the flange 13 of the top casing 12 rests. A skin 15 may be placed between-the flanges 13 and top plate 11 with its smooth side 16 uppermost. A hermetically sealed container is obtained by the provision of rubber, gelatin or like elastic cushions 14 and 18 and tightening clamps 19. Sealing may be facilitated by wetting the skin with water, paraffin or grease over the area of the cushions. A wire mesh supporting screen 22 for the skin is supported on ledges 25, 26 and 27 within the casing. The latex is spread over the smooth side 16 of the hide by injectors 36 and 37 or by a brush (not shown) and vacuum is applied to the bottom casing 10, with or without applying heat and/or pressure in the upper casing 12. Pressure alone may be used in the upper casing, the lower casing being as atmospheric pressure. Impregnation may take place through the - hairy side and the process is also applicable to reptilian skins having scales. Specification 316,338, [Class 140], is referred to.
Patent GB-732593-A (GB)
Title: Improvements in or relating to arrangements for impedance transformation and balancing
Inventor: GRAZIADEI HEINZ
IPC: H01P5/10
Filed: 1953-03-10
Abstract: 732,593. Impedance transformers. SIEMENS & HALSKE AKT.-GES. March 10, 1953, No. 6632/53. Class 40 (8). [Also in Group XL (c)] An impedance transforming and balancing arrangement for transmitting or receiving aerials comprises a coaxial cable whose conductors 1, 2 emerge into an exponential impedance transforming line 3 having series capacitance C added before its load or receiving end and with its inner conductor 1 conductively connected to a short length l of conductor 6, or line section short-circuited at both ends, running parallel with the cable at the same height above ground as the cable and connected at its end 7 to a equal length of the outer conductor 2 of the cable and both at this point 7 to earth. The input impedance of the exponential line 3 is capacitive but varies, with change of frequency, like a negative inductance and may be neutralized under suitable conditions over a frequency range of 1 to 10 by the inductance of the balanced double line 2, 6. The conductor 6 need only be a thin wire, equality of diameter with the cable being unnecessary, or may be a network simulating the distributed capacitance of the outer conductor 2 of the cable. Further, earthing may be effected by an earthed cylinder enclosing the cable section and conductor 6. The exponential line may be an artificial line or a tapering extension of the outer conductor 2 of the cable, the sheath of the latter being progressively diminished, or to this end the cable inner conductor and sheath being formed of wires and the sheath in the form of a progressively diminishing wire cage. To reduce space the exponential line 3 may be in the form of diverging lines wound into a cylindrical coil. A dielectric other than air may be provided between the line 3, or between the cable and conductor 6, or between earth and the cable and conductor respectively. A preliminary impedance transforming may be effected in the cable in front of the line 3.
Patent GB-598048-A (GB)
Title: Improvements in or relating to oil well masts or derricks
IPC: E04H12/34
Filed: 1944-04-11
Abstract: 598,048. Derricks. MOORE & CO., Inc., L. C. April 11, 1944, No. 6646. Convention date, April 10, 1943. [Class 78(iv)] A derrick straddling an oil well 2 comprises a'sectional mast, Fig. 1, having its front and rear legs 12a, 12b detachably pivoted in brackets 11, 14 on a superstructure 1 which is open at its front end so that when the mast is lowered by a cable 7 after disconnecting its front legs from the brackets 14, it will extend out through the open end of the superstructure along the ground as in Fig. 3. During the raising or lowering of the mast, the cable 7, connected to the travelling block 8, is supported by a sheave 20 on a gin pole 16, 17 which is fastened to the bracket 11 and to a bracket 18 adjacent the. hoisting mechanism. In a modification, Fig. 6, the front of the mast is detachably connected at 28 to the front legs 29 of a gin pole, the vertical legs 30 of which are secured to the brackets 11.
Patent GB-140205-A (GB)
Title: Improvements in safety valves
IPC: F16K17/08
Filed: 1919-03-19
Abstract: 140,205. Ross & Co., R. L., and Hargreaves, W. March 19, 1919. Safety-valves.-A safety-valve has the casing c provided with a flange c<1> adapted to be secured to a flange a<1> on a base-ring a by bolts d independent of the studs e used for securing the valve to the boiler. The valve seat b has a flange b<1> midway along its length held in a recess in the base-ring by a cylindrical extension c<2> on the casing. The valve seat may be formed integrally with the base-ring or with the casing.
Patent GB-889245-A (GB)
Title: Improvements in buoys
IPC: B63B22/02
Filed: 1959-02-27
Abstract: 889,245. Buoys. GARLAND, N. Feb. 27, 1959, No. 6919/59. Class 68(1). A mooring buoy has a centrally disposed hawse pipe for the separate and independent loadcarrying mooring system associated with the buoy, and said hawse pipe consists of an upper mooring arm guide slot or slots 44 and a lower pendant mooring housing 62 joined together by a bearing housing 60 which extends to the top of the working platform 41 of the buoy and which is adapted to contain and form a pivotal support for an enlarged boss 54 on the bottom end of a mooring arm 51 of the mooring system. Each of the guide slots has an inclined floor 49 which is oblique to axis of the buoy and the slot restricts movement of the arm to a predetermined vertical plane. Specifications 485,173, 771,644, 779,569, 779,970, 781,634, 851,953 and 860,824 are referred to.
Patent GB-910048-A (GB)
Title: Apparatus for hot-sheating electric cables with tubular metal sheaths
IPC: B21C23/26
Filed: 1960-04-26
Abstract: 910,048. Extruding cable sheaths. PIRELLI S.p.A. April 26, 1960 [May 13, 1959], No. 6921/62. Divided out of 910,047. Class 83 (4). Apparatus for hot-sheathing an electric cable with metal, particularly aluminium, comprises an extrusion press P with a vertical cylinder 2 from which molten metal 6 is forced to the extrusion nozzle by compressed gas insoluble in the molten metal, the latter being supplied from a melting furnace Q through a closed reserve container S fed with pressure gas to force the metal into the cylinder and having corrosion-resistant inlet and outlet valves 122, 22 controlled by minimum and maximum level indicators 114, 115 and 14, 15 in the container S and the press cylinder 2. The press P is of the kind described in Specification 910,047. Molten aluminium from the furnace Q heated by resistors 204 and which may have an argon atmosphere, is fed through a pipe 116 and the valve 122 to reserve container S which has a graphite crucible 102 surrounded by a porous layer 105 enclosed in an outer casing 101 with a fluid-tight lid 103. Pressure argon supplied through valve 119a acts on both sides of the crucible 102. through the porous lining, to equalize the pressure. The container is heated by resistances 104 controlled by a thermostat 118 through regulator R. Heating elements may be provided in the pipes 116, 16 which are lined with graphite. Valves 22, 122 are of the melting plug-type as described in Specification 899,318, and are controlled automatically by the level detectors 14, 15, 114, 115 through a common or separate frequency generators G 1 , G with timing devices T 1 , T. Two or more reserve containers S may be provided in parallel between the furnace Q and the press P.
Patent GB-1510900-A (GB)
Title: Spark plug
IPC: H01T13/22
Filed: 1976-02-23
Abstract: 1510900 Spark-plugs FORD MOTOR CO Ltd 23 Feb 1976 [6 March 1975] 06970/76 Heading F1B A spark-plug 10 comprises a pair of primary elctrodes 28, 30 adapted for electrical connection to a source of sparking energy and having sparking surfaces facing one another and maintained in spaced apart relation by insulation means 16 to define a principal spark gap therebetween, at least one secondary electrode 34, 36 positioned adjacent to the principal spark gap, aperature to define a plurality of secondary spark gaps generally within the principal spark gap, the at least one secondary electrode being arranged to permit an unobstructed straight line path between the sparking surfaces of the primary electrodes and having a sparking surface 35, 37 positioned to define a portion of a lateral boundary of the principal spark gap, and electrical high impedance means 38, 40 connnected in series to the at least one secondary electrode, the at least one secondary electrode being connected through the electrical high impedance means to one of the primary electrodes. In a modification (not shown) the spark gap extends parallel to the end surface of the insulator. As shown, the high impedance means 38, 40 comprise resistors but it is stated that capacitive coupling could be employed. Specifications 1500747 and 1501920 are referred to.
Patent GB-354304-A (GB)
Title: Improvements in atomisers, vaporisers, liquid fuel burners or the like
IPC: F23D11/10
Filed: 1930-03-03
Abstract: 354,304. Gas and liquid-fuel burners. MAGOWAN, A., 4K, Leeds Road, Cutsyke, Castleford, Yorkshire. March 3, 1930, No. 6973. [Class 75 (i).] An atomizer, vaporizer or liquid fuel burner comprising concentric tubes 1, 8, 9, Figs. 1 and 2, connected at one end to an air supply pipe and to which liquid is supplied through radially arranged pipes 14 has preheated air supplied from the elbow tube 3 to the central tube and passage ways between the concentric tubes, whilst an additional air tube 19 is provided to regulate the admission of preheated air to the inner tube and to conduct cool air to the inner tube 9 and thus prevent it from being overheated. The casing of the burner may be formed with a central cylindrical part 1 bolted to a part 6 carrying a truncated conical nozzle 7, and to an elbow part 3 connected to the hot air supply. Within the parts 1, 6 the concentric tubes 8, 9 are mounted by radially directed screws 13 and inclined vanes 11 by which the heated air is swirled. The tube 8 may be bent over at its inner end to form an insulation jacket to protect the tube 9. The outer end of the tube 9 is coned at 12. Liquid is supplied to the radial pipe 14 through pipe 15 provided with stop valves 16. The cold air supply pipe 19 which is provided with an insulating jacket 27 is arranged to slide in a tubular projection of the elbow 3 and is connected to an elbow 23 provided with a projection 23a closed by a cap 25 having transparent window 26 through which the interior of the tube 9 may be observed.