baber/WOPTO huggingface dataset:
Patent GB-934609-A (GB)
Title: Water heating boilers and circulating systems incorporating such boilers
Inventor: RAVENSCROFT REGINALD PRESTON
IPC: F24H1/28
Filed: 1961-06-30
Abstract: 934,609. Hot-water boilers. COCHRAN & CO. ANNAN Ltd. June 26, 1962 [June 30, 1961], No. 23765/61. Class 64(1). In a water heating boiler 1 for use with a hot-water circulating system 13 which includes an outlet 11 for the outflow of hot water to the boiler from the system, the inlet 14 terminates in a nozzle 15 situated in the upper part of the water chamber of the boiler and is arranged to direct a stream of water into the flared upper end 17 of a receiving passage 16 lying within the water chamber thus inducing a flow of water from the upper part of the water chamber into the passage 16 to be discharged from the opposite end 18 of the passage 16 in the lower part of the water chamber hence resulting in the circulation of water within the water chamber. In a modification, Fig. 3, not shown, the inlet passage 14 terminates in a double nozzle arrangement and there are two receiving passages each of the nozzles being arranged to direct a stream of water into one of the receiving passages which terminate as described in the lower part of the water chamber.
Patent GB-724879-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J21/06
Filed: 1953-08-28
Abstract: 724,879. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 28, 1953 [Sept. 2, 1952], No. 23825/53. Class 39 (1). In a discharge tube having two part-cylindrical grids 5, a common screen grid 8, and two semi - cylindrical anodes 9 surrounding a common cathode 4, the grids and cathode being supported at one end only of the assembly, the anodes are united at the other end, so that they form in effect a cylinder with two diametrically opposed cuts 10 along the greater part of its length. The anodes are supported from a cylinder 11 of smaller diameter, lined with copper, which passes through the tube wall, and contains a coaxial conductor with a coupling loop 14. Cooling fins 15 may be provided. The tube is used on decimeter wavelengths, at anode voltages of from several hundred to more than a thousand.
Patent GB-591870-A (GB)
Title: Protective device
IPC: G01S7/282
Filed: 1944-11-30
Abstract: 591,870. Protective circuits. PHILCO RADIO & TELEVISION CORPORATION. Nov. 30, 1944, No. 23974. Convention date, Nov. 30, 1943. [Class 40 (v)] [Also in Group XXXV] A protective circuit for an intermittently operable load, subject to internal arcing such as a pulse modulated oscillator, comprises a parallel resistance capacitance circuit connected in series with the load and the supply. The Figure shows the circuit applied to a pulse modulated oscillator comprising a triode mounted in a resonant cavity. The values of capacitor 14 and resistor 13 are such that no appreciable drop in anode potential occurs during the period when the valve is conducting, due to a pulse being applied to the grid, but if the grid pulse initiates a flashover in the valve the anode voltage drops to a value at which the arc goes out. The application to a pulse modulated Hartley oscillator is also described. Specification 591,874 is referred to.
Patent GB-245047-A (GB)
Title: Improvements in garment hangers
IPC: A47G25/40
Filed: 1925-09-26
Abstract: 245,047. Evans, M. Sept. 26, 1925. Coat and like hanger. --Garment hangers of the coat-hanger type are made with notches 7 for the loops of skirts to engage with, these notches being formed in wire bars 6 which may be pivoted to a yoke 5. In another construction, a single curved strip is notched near the ends.
Patent GB-1195914-A (GB)
Title: Particulate Detergent Compositions of Low Bulk Density.
IPC: C11D1/14
Filed: 1967-05-24
Abstract: 1,195,914. Preparation of olefin sulphonates. COLGATE-PALMOLIVE CO. 24 May, 1967 [31 May, 1966], No. 24087/67. Heading C2C. [Also in Division C5] Alkenyl sulphonates with or without the presence of hydroxyalkane sulphonates and disulphonates are prepared by reacting a C 8-25  olefin feedstock with sulphur trioxide, reacting the reaction mixture with sulphuric acid or oleum and then neutralizing. In an example, an alpha-olefin feedstock containing about 88% of terminally unsaturated straight chain olefins having an average molecular weight of 230 and an average chain length of 15-18 carbon atoms (C 15  = 24%, C 16  = 29%, C 17  = 30% and C 18  = 17%, approximately) and having a boiling range at atmospheric pressure of 265-300‹ C. (with 11% residue) is continuously reacted with sulphur trioxide. The resulting mixture is treated with 90% aqueous H 2 SO 4  and neutralized with hot aqueous NaOH.
Patent GB-443568-A (GB)
Title: Improvements in or relating to means for supporting mirrors, or the like
IPC: A47G1/24
Filed: 1934-08-23
Abstract: 443,568. Mirror supports. ABBOTT, S. S., 15, High Street, Southall, Middlesex. Aug. 23, 1934, No. 24271. [Class 52 (v)] A mirror a supported on a dressing table &c. j<1> can be rotated in two planes at right angles. It is pivotally attached to the upper end of a vertical rod e the reduced lower end of which passes through a passage in the top of the dressing table. Reference has been directed by the Comptroller to Specification 142,978, [Class 52 (iii)].
Patent GB-256426-A (GB)
Title: Improvements in beer engines
IPC: B67D1/02
Filed: 1925-09-30
Abstract: 256,426. Gaskell & Chambers, Ltd., and Weightman, J. S. Sept. 30, 1925. Lever-actuated pumps. - The lever of a beer engine is pivoted on a bracket 5 comprising a pair of rigidly rrcunted jaws 4 between which the boss 1 of the lever is pivoted by means of conical pins 6 engaging a tube 2 in the boss. The pins 6 are screw-threaded to enable one or both to be axially adjusted to take up wear. The interior of the tube is filled with lubricant.
Patent GB-849472-A (GB)
Title: Improvements in or relating to capacitors
Inventor: CIANCHI ALFREDO LUIGI GUISEPPE
IPC: H01B3/08
Filed: 1955-08-24
Abstract: 849,472. Capacitors. WELWYN ELECTRIC Ltd., [formerly WELWYN ELECTRICAL LABORATORIES Ltd.]. Aug. 24,1956 [Aug. 24, 1955], No. 24399/55. Drawings to Specification. Class 37 [Also in Group XXIII] The dielectric of a capacitor comprises particles of a first vitreous dielectric material (at least 90% of the particles having a size of from 0À5 to 50 microns) embedded in a matrix of a second vitreous dielectric material having softening point lower than the first material, one of the materials having a positive temperature co-efficient of dielectric constant (T.C.D.) and the other a negative T.C.D. and the capacitor having a temperature co-efficient of capacitance (T.C.C.) intermediate the T.C.D.'s of the two materials. The capacitors are made by intimately mixing the vitreous materials, making a slip of the mixture, applying the slip to metal electrodes to form coatings, drying the coatings, heat treating the coated electrodes at a temperature and for a time such that the material of higher softening point does not lose its particulate identity, placing the coated electrodes together to form a capacitor, and cooling the capacitor after vitrification of the dielectric layers. The electrodes may be of Cu, A1 or Ag. The first material may comprise the following materials in the amounts by weight indicated: TiO 2  (2-10), PbO (4-35), BaO( 13-40), SiO 2  (5-30) CaO (4-10), SrO (0-10), ZrO 2  (0-15), K 2 O (8-20), Na 2 O (0-3), Li 2 O (1-5), BzO  3  (2:10), MgO (0-5), NaF (0-10), Al 2 O 3  (0-2). The second material may comprise the following materials in the amounts by weight indicated: TiO 2  (14-35), PbO (10-30), BaO (10-30), SiO 2 (6-25), SnO 2  (2-25), CaO (2-10), SrO (2-10), ZrO 2  (1-6), Sb 2 O  3  (0À5-3), K 2 O (7-20), Na 2 O (1-5), Li 2 O (1-5), MgO (0À5-5) P 2 O 5  (0-5), B 2 O  3  (0-5). Specific examples within these ranges are also given and a table sets out the T.C.C. and power factor obtained by mixing varying proportions of the first and second materials. Specification 716,259 is referred to and Specifications 723,669 and 795,731 are referred to in the Provisional Specification.
Patent GB-216427-A (GB)
Title: Improvements in or relating to leather graining boarding and softening machines
IPC: C14B1/40
Filed: 1923-10-01
Abstract: 216,427. Spencer, J. E. Sept. 6, 1923, [Convention date]. Clutches, claw; operating clutches.-A pinion 27, Fig. 2, meshing with a driven pinion 26, is made to impart motion to a shaft 28 by a clutch designed to permit one-half of a revolution of the shaft at each actuation of the clutch. The clutch comprises a pin 108, Fig. 10, which is carried in a collar 110 on the shaft 28 and is adapted to engage a series of pins 106 set in a recess 105 on the pinion 27. The pin 108 has a boss 112 capable of movement along a slot 111 in the collar 110, and fixed in the boss 112 is a journalpin 113 on which is journaled a roller 114. The pin 108 is moved into clutching position by a spring-pressed pin 115 similarly provided with a boss 118, journal-pin 119, and roller 120, this roller being somewhat shorter than the roller 114. The mechanism for controlling the projection and retraction of the pins 108, 115 is carried by a cross-piece 24, Fig. 2, and comprises, as shown in Figs. 5 and 6, two cam-pieces 125, 126 connected by studs 127 capable of sliding in bearings 128, 129, each cam-piece having a pair of inclined cam-faces 130, 131. In operation, when the control mechanism is in its lowest position, the roller 120, as the collar 110 rotates, is engaged by the cam-face 130 on the upper campiece 125, and is retracted against the action of the spring 116. Similarly the roller 114 is engaged by the corresponding cam-face 131 so that the pin 108 is retracted and the rotation of the shaft ceases. When the control mechanism is raised, the rollers 120, 114 are released in turn, and the pin 115 projects the pin 108 into engagement with the pins 106. The cam-faces on the lower cam-piece 126 are moved by the raising of the control mechanism into such a position that when the shaft 28 has completed one-half a revolution the pins 115, 108 are again retracted in the manner described above. When the control mechanism is again depressed, the pins are first released and, after a further half-revolution of the shaft, again retracted. The raising and lowering of the control mechanism is effected by means of a treadle which carries a link attached to a perforated ear 135 on the lower campiece 126. A brake device may. be attached to the shaft 28 to prevent overrunning after it has been unclutched.
Patent GB-922583-A (GB)
Title: Fabricating semiconductor devices
IPC: C23F1/02
Filed: 1959-07-15
Abstract: 922, 583. Semi-onductor devices. RADIO CORPORATION OF AMERICA. July 15, 1959 [July 25, 1958], No. 24388/59. Class 37. A thin sheet of semi-conductor material is diced by forming a metallic film on at least one surface of the slice in a pattern of spaced areas, dipping the sheet into molten metal to plate the metallic film and immersing the slice in an etch which dissolves the semi-conductor material between the coated areas. The semi-conductor material may be for example silicon, germanium-silicon alloys, silicon carbide, phosphides, arsenides and antimonides of aluminium, gallium and indium and the sulphides, selenides and tellurides of zinc, cadmium and mercury. The metal film may be of copper, cobalt, nickel, rhodium, palladium, silver, iridium, platinum or gold. In a first example silicon sheet is masked to expose the separated areas on one side and the opposite face completely covered. A rhodium pellet is then evaporated by tungsten wire so as to form a thin film on the unmasked portion. The slice is then dipped in the molten lead, tin or a lead tin alloy which coats the rhodium thickly but not the silicon. The sheet is then coated with wax on the face opposite the masked face and immersed for about five minutes in hydrofluoric acid nitric acid mixture which dissolves the unmasked silicon so that the sheet is diced. Connections may be soldered to the lead coating. In a further example silicon diodes made by diffusing phosphorus into P-type material, boron into N- type or boron and phosphorus into opposite faces of an intrinsic sheet is first coated with nickel by a known electric process in a solution described in detail. Adherence of the nickel coating thus formed may be improved by sintering and recoating. The slice is then placed in a masking jig and sprayed with an acid wax resist so as to cover a series of spaced hexagonal areas. The slice is then placed in an etch to dissolve the nickel between the hexagons not protected by the resist. The wax resist is then dissolved and the slice dipped in a lead-tin solder which adheres to the nickel. Finally the slice is inserted in a beaker of etchant to dissolve the silicon between the hexagonal areas. The solder may be used for mounting the separated hexagons on a base. In a still further example a slice to be divided into gallium arsenide diodes is coated with silver and then sprayed with a photo resist. The slice is then placed in the masking jigs so as to expose registering light patterns on opposite faces, the photo resist is then developed and the unexposed portion removed. The portions of the silver film not covered by the resist are then washed away in a nitric acid hydrochloric acid solution and the rest of the plate resist removed. The slice is then dipped in a 99% lead 1% tin solder which coats the silver areas so that when the slice is inserted for five minutes in an etch consisting of equal volumes of nitrogen hydrofluoric acid and distilled water it breaks up into square areas. The wafers are then washed, mounted and encapsulated.
Patent GB-394514-A (GB)
Title: Improvement in or connected with oars and sculls
IPC: B63H16/04
Filed: 1932-09-01
Abstract: 394,514. Oars. AYLING, G. J., Riverside, Putney, London. Sept. 1, 1932, No. 24394. [Class 114.] Oars are provided with a stiffening plate 1 constructed from a strip of metal and formed with flanges 1b on both sides at the part adjacent the button. The plate and flanges are bent round the loom of the oar and secured thereto by screws. The post 4 is provided to carry the button 7 and is secured to it and an encircling sleeve 8 by a screw 9. The sleeve 8 has lugs which are secured by additional screws 8a to the loom 2.
Patent GB-384715-A (GB)
Title: Apparatus for carrying out the manufacture and production of neutral products from oiats
IPC: C11B3/12
Filed: 1931-08-31
Abstract: <PICT:0384715/III/1> <PICT:0384715/III/2> Fats or fatty oils are made neutral by the process described in Specification 273,276, [Class 91, Oils &c.], according to which the free fatty acids contained in the oil are removed by distillation and are then heated with a deficiency of glycerol or other polyhydric alcohol and the resulting esterification mixture is returned to the oil undergoing distillation.  A suitable apparatus comprises a still A, Fig. 2, in which a fatty oil such as peanut or sesame oil is treated with superheated steam, and connected through a pipe B to a heated condenser to 70 DEG  C. in which the fatty acids condense and pass through a pipe F to a vessel G, and water vapour passes to an injector condenser D.  The apparatus is evacuated by a pump E.  The fatty acids, if desired mixed with other fatty acids such as butyric or maize oil acids, are heated to 180-260 DEG  C. in the vessel G and partially esterified with glycerine admitted from a vessel J.  Water vapour formed during the reaction passes through a reflux condenser N to the condenser D.  The resulting esterification mixture containing about 5 per cent of free fatty acids passes through an overflow pipe K into the still A.  The still A may be of the type described in Specification 277,085, [Class 91, Oils &c.], or may consist of a column containing baffle plates, or a series of walls Z, Fig. 4a, in which the oil is heated in a thin layer by steam admitted at the bottom of the column.  Esterification may be effected in the presence of catalysts such as tin or magnesium. The neutralized oil may be further purified by treatment with alkalies.  Specifications 159,587 and 213,267, [both in Class 91, Oils &c.], also are referred to.
Patent GB-1269281-A (GB)
Title: Apparatus for processing multi-metal plates for use in offset printing machines
IPC: G03F7/16
Filed: 1969-05-13
Abstract: 1,269,281. Photographic processing apparatus. BIO BIELEFELDER OFFSET-DRUCKPLATTEN UND ZUBEHOR B KRAUSE. May 13, 1969 [May 14, 1968J, No.24425/69. Heading G2A. Multimetal offset printing plates are processed in apparatus comprising two processing lines I, II, Fig. 1, each line having a frame 22 extending above a plurality of processing stations arranged one behind the other, the frame having support means mounted therein for supporting carriers for the plates and for lowering all the carriers simultaneously into respective processing stations and simultaneously raising all the carriers after a predetermined period, the frame further including conveyor means 101, Fig.6, driven intermittently in timed relationship with the support means for displacing all the individual carriers from above respective processing stations to above succeeding processing stations when the support means is in its raised position. Each plate 52 is attached to a vacuum carrier 20 which are fed one at a time into projections 100, Fig. 6, on a horizontal conveyor chain 101 which is moved intermittently by a motor 23 in the direction of the arrow 10. The frame 22 is lowered and raised by a hoisting motor 24 and chains 25 and 26 between each movement of the horizontal conveyor, so that an individual plate is successively immersed in the processing containers. The first processing line contains a water bath for removing protective rubber from the surface of a plate and subsequent chemical cleaning baths of potassium permanganate and potassium metabisulphite. The plates issuing from this line are then coated and exposed in a conventional manner and then stacked for processing in the second line in which containers are provided for developing, drying, etching, cerium oxide treatment, and removal of the coating from undeveloped areas. Rotating brush rollers (28) and squeegees (31, 32), Figs. 2 and 3 (not shown), may be provided in the containers. Successive containers may contain the same processing solution in which case crosscirculation is provided with heat exchangers to keep the concentration and temperature at optimum values.
Patent GB-1116248-A (GB)
Title: Improvements in and relating to lifting clamps
IPC: E04G21/16
Filed: 1966-06-01
Abstract: 1,116,248. Lifting clamps. J. C. RENFROE & SONS Inc. 1 June, 1966 [15 June, 1965]. No. 24442/66. Heading B8H. A lifting force may be applied to a shackle 32 of a lifting clamp in any direction between those indicated by arrows A, B, to urge a gripping jaw 24 into engagement with a load in a slot 20. When the lifting force is applied in a direction having a component in the direction of the arrow A the shackle 32 abuts a pin 18 which forms a fulcrum. The jaw 24 is urged into the slot 20 by a spring 66 and may be withdrawn by raising a handle 48. Fig. 7 (not shown), illustrates an embodiment in which a fulcrum for a lifting shackle (132) is formed by a spacer bar (118) and the jaw (126) is urged into engagement with the load by a spring (145) tensioned by an over-centre lever (141).
Patent GB-1383883-A (GB)
Title: Conveying apparatus
IPC: B65G15/28
Filed: 1973-05-22
Abstract: 1383883 Arrangements of conveyer belts DRAVO CORP 22 May 1973 [6 June 1972] 24495/73 Heading B8A A single length of conveyer belt 10 has a section 14a of its length, disposed at an angle to a section 14b, by passing the conveying run around pulleys 18 and 26, and around a pulley 30, the axis of the latter being angled relative to the axes of the former. Similarly the return run passes over pulleys 70 and 80 the axes of which are parallel to the axis of the pulley 30, and pulleys 90 and 102 which are parallel with the pulleys 18 and 26. In a modification (Figs. 5-7, not shown), the arrangement is such that the direction of conveyance is changed by 90 degrees
Patent GB-971546-A (GB)
Title: Compositions of fluorocarbon polymers and inorganic materials
IPC: H01B7/18
Filed: 1961-07-06
Abstract: 971,546. Fluorocarbon polymer compositions. W. L. GORE & ASSOCIATES Inc. July 6, 1961 [Aug. 1, 1960], No. 24511/61. Drawings to Specification. Heading C3P. Compositions comprising a substantially homogeneous mixture of finely divided fluorocarbon polymer and mineral fibres substantially in the form of individual finely divided particles embedded therein and oriented mainly with their lengths parallel to the surface of the composition, the proportion of fluorocarbon resin being greater than the proportion of fibres, may be prepared by forming a suspension of the finely divided polymer and mineral fibres in a liquid medium capable of wetting both materials, said liquid medium being present in a concentration sufficient for the suspension to maintain its uniformity of distribution on standing, thereafter removing said liquid from said suspension to give a powdery material which is shaped by an extrusion process whereby the mineral fibres are oriented mainly with their lengths parallel to the surface of the composition. Specified fluorocarbon polymers are polytetrafluoroethylene, polychlorotrifluoroethylene and copolymers of tetrafluoroethylene with ethylene, hexafluoropropylene and chlorotrifluoropropylene. Specified mineral fibres are potassium titanate, glass, silica-alumina, zirconium oxide and boron oxide, optionally coloured with cadmium or cobalt oxides. Specified liquids are methanol, dimethyl ether of ethylene glycol, ethyl acetate, hydrocarbons, halogenated hydrocarbons and water containing wetting agents, e.g. sodium lauryl sulphate, sulphonated oils and quaternary ammonium salts. The compositions may be shaped into ribbons, tapes, rods, gaskets, linings, coatings, sheets, laminates, printed circuits, insulators for electrical conductors, coatings for pipes and hose, and linings for barrels, drums and tanks. Examples describe the preparation of compositions from aqueous dispersions containing sodium lauryl sulphate and (ii) polytetrafluoroethylene and potassium titanate and (iv) tetrafluoroethylene-hexafluoropropylene copolymers and glass fibres.