baber/WOPTO huggingface dataset:
Patent GB-1431843-A (GB)
Title: Processes for coating metal surfaces
IPC: B05D1/18
Filed: 1973-06-12
Abstract: 1431843 Coated products AMCHEM PRODUCTS INC 12 June 1973 [14 June 1972] 27843/73 Heading B2E An acid-etchable metal surface is coated by immersing the surface an acidic aqueous resin dispersion, in which a primer-coating resin is dispersed in aqueous phase containing an acid which etches the metal surface to generate metal ions, which destable the otherwise-stable dispersion adjacent the metal surface to deposit a substantially uniform organic/ inorganic coating incorporating the primer resin, maintaining the metal surface in the dispersionatsucha temperature and for such a time as to form the organic/inorganic coating having the desired weight and/or thickness, removing the less coated surface and, if desired aftertreating the resultant coating to consolidate it, applying at least one further siccative coating, and hardening the siccative coating to integrate the resultant composite coating upon the underlying metal surface. The metal surface may be zinciferrous or ferriferrous. The primer resin dispersion may have a pH of from 1.6 to 3.8 and contain from 04 to 5.0 grams/litre of simple fluoride (calculated as F<SP>-</SP>), from 0.3 to 3.0 grams/litre of hydrogen peroxide and from 5 to 500 grams/litre of the dispersed resin. The dispersing agent may be added to the coating composition continuously or intermittently to avoid metal ion concentration build-up and/or metal ion may be removed to prevent concentration thereof from building-up, the effective concentration of the stabilising metal ions being maintained at not more than 3 grams per litre when using the former technique and not more than 1.5 grams per litre when using the second technique alone. The resin dispersion may have a pH of 1.6 to 5.0 and may initially contain at least a significant amount of ferric iron. The coating may be rinsed with an after-rinse solution containing hexavalent chromium. The siccative coating may be formed from any natural or synthetic film-forming resinous material and may be applied in paint or powder form. Suitable materials are linseed oil, tung oil, oil-modified alkyd resins, epoxy resins, vinyl acetyls, polyesters, polyamides, phenolic resins, polyvinyl chloride, polyvinyl acetate, styrene-butadiene copolymers, cellulosic resins and polyacrylic resins. They may be applied by brushing, dipping, flow coating, roller coating, pressure cortain coating, spraying or by electrophoretic coating. The following materials may be applied in powder form; polyvinyl chloride, epoxy resin, polyamide, cellulosic resin, polyester resin, polyethylene, polypropylene, polyacrylic resin, fluorocarbon (e.g. polytetrafluoroethylene and polyfluoroethylene-propylene) resin and chlorinated polyethers. Such coatings may be applied by a flow coating, flocking, fluidised bed or electrostatic spraying. The siccative coating may comprise at least one intermediate coat and a top coat. The method is of particular use in coating car bodies.
Patent GB-245561-A (GB)
Title: Rotary dryer for the drying of whinstone, limestone, sand clinker and such like material
IPC: E01C19/05
Filed: 1925-08-01
Abstract: 245,561. Kirkup, R. H., Kirkup, F., and Thompson, J. Aug. 1, 1925. Continuous-discharge apparatus, rotary; agitating appliances.-Apparatus for drying whinstone &c. comprises a rotary cylinder E having agitating and conveying vanes and through which the whinstone passes from a hopper A closed by a counterweighted door B in the opposite direction to that of furnace gases drawn by a fan D from the furnace T and discharged into a dust-collecting chamber H. The materials are broken up by a teazer C as they enter the cylinder and pass after being dried into a casing K having an outlet L closed by a counterweighted flap. Specification 7582/14 is referred to.
Patent GB-688424-A (GB)
Title: A new or improved unit for use in building construction
IPC: E04B7/04
Filed: 1950-11-15
Abstract: 688,424. Roofs; walls; metal sheets. BOULT, P. T. O. Nov. 15, 1950, No. 27890/50. Addition to 650,094. Classes 20(ii), 20 (iv) and 87 (i) Metal members for roofs or walls comprise a tubular load-bearing part 50 from one side of which extends a sheet or cladding 51 which is channel-shaped at tne edge parallel to the tubular part so as to engage over the tubular part of an adjacent member solely by relative movement of the members in a direction parallel with their thickness. Thus the edge 52 is bent into inverted V-shape to take over and be bolted to part 50 of the next member which is of triangular cross-section and constitutes a rafter. An angle bracket at the lower end of each rafter is secured to a wall and a flange 55 at the upper edge of each sheet is bolted to the corresponding flange of the member on the other side of the roof. A ridge cap 57 with upturned portions 58 engaging underneath an inverted V-shaped ridge cap 59 covering the upper end of corresponding rafters covers the junction between the sheet portions. A reinforcing plate 61 may be secured underneath the rafters by the uppermost bolts 53 connecting the rafters and sheets of adjacent members and by a bolt 60 fixing the ridge cap 59 in position. For walls the load bearing members may engage a support embedded in the ground or a concrete foundation, or the sheet portions may engage a support.
Patent GB-1073871-A (GB)
Title: Metal-coating method and product
IPC: C23C2/38
Filed: 1965-07-01
Abstract: <PICT:1073871/C6-C7/1> An aluminium coating thicker than 0.002 inch is formed on a steel base by preheating the steel base to a temperature within the range from substantially 500 DEG F. to 1200 DEG F., and passing the preheated steel base through a bath of molten Al under positive pressure head for a time interval sufficient to deposit on the steel base a solidified Al coating having a thickness greater than 0.002 inch, the time interval being too brief to permit significant remelting of the deposited Al coating within the bath. "Significant remelting" denotes any remelting that would reduce the thickness of the coating to less than 0.002 inch.  The term "aluminium" includes aluminium alloys.  Steel wire 11, as it is passed through apparatus as shown in Fig.1, is preheated at 10 and then coated with Al from a molten bath 15, ceramic members 30 and 24 having been moved axially apart to allow the molten Al to flow on to the wire Fig.2 (not shown). The arrangement is such that almost the complete thickness of the A1 coating solidifies on the steel wire in the first few millimetres of the wire's travel through the bath and the time of immersion is too brief to allow significant remelting of the deposited Al. Prior to coating, the wire may be subjected to a series of specified cleaning steps.  It is then heated at 500-1200 DEG F. in an atmosphere of CO and/or H2.  The lower is the preheating temperature and the lower is the coating bath temperature, the thicker is the coating of Al obtained.  The wire, as it leaves the bath, passes through a N2 or A atmosphere to prevent oxidation. Depending on the temperature of preheating, an interfacial steel -Al alloy layer may be formed between the steel core and Al coating. Such alloy layer when formed is .0002 to .0007 inch thick and may or may not be continuous.  It ensures adequate bonding of the Al to the steel so that the coated wire may be mechanically worked, e.g. in a drawing or rolling die. When no alloy interlayer is formed, the coated wire is heat treated prior to drawing.  Electrical power cables may be made by the process.
Patent GB-716202-A (GB)
Title: Improvements in or relating to devices for making sheets, ribbons or tapes
Inventor: BAUGHAN SIDNEY
IPC: B32B27/00
Filed: 1951-11-28
Abstract: 716,202. Compound sheet materials. PORTH TEXTILES, Ltd. June 20, 1952 [Nov. 28, 1951], No. 27917/51. Class 140 A decorative sheet, ribbon, or tape is made by laying yarns or threads 44, drawn from a creel through a reed 47, on to a backing 4 to which adhesive has been applied by an apertured member such as a slotted tube 11 receiving adhesive from a container 6. The composite material may be slit. e.g. by rotary knives to form ribbons or tapes. The adhesivecoated backing may be heated by lamps 13, 1013, and 2013, and, after union with the threads between rollers 17, the composite product may be heated, e.g. by a heating element 21 provided in a drying chamber 18. A pair of adjustably pressed Pulling rollers 25 serve to draw the backing and threads from their respective supplies, and the product is wound on a driven take-up roller 24. The backing may be cardboard, paper, or a film such as cellulose acetate, while the threads may be of silk or rayon.
Patent GB-281074-A (GB)
Title: Improvements in garment pressing machines
IPC: D06F71/34
Filed: 1926-11-08
Abstract: 281,074. Clark, C., Clark, R. C., and Clark, A. B., (trading as Clark & Co.). Nov. 8, 1926. Ironing-machines with pressing action only.- The stationary buck is heated by a steam or heated air pipe and is provided with perforations a<1> through which heated compressed air from a supply pipe D can be passed to the garments &c. The press head E is formed of fabric or other flexible material and is held in contact with the buck by hooked arms G and a locking member K.
Patent GB-857643-A (GB)
Title: Improvements in push-pull power amplifier
IPC: H03F3/30
Filed: 1959-08-18
Abstract: 857,643. Transistor amplifier circuits. GENERAL ELECTRIC CO. Aug. 18, 1959 [Aug. 20, 1958], No. 28177/59. Class 40(6). A transistor amplifier comprises a first transsistor having its collector coupled to one supply terminal and its emitter coupled to the output terminal and to the collector of a second transistor having its emitter connected to the other supply terminal, the input signal being applied to the base of the first transistor while the base of the second transistor receives a signal from the collector of the first by way of a third transistor such that the first and second transistors supply an output signal in aiding relation to the load. In Fig. 2 the input signal is applied to the base of a transistor 62, the collector of which feeds a pair of emitter follower transistors 116 and 216 having the output emitter coupled through a capacitor 46<SP>1</SP> to a loudspeaker load 70. A signal derived from a small resistor 22<SP>1</SP> in the collector circuit of transistors 116 and 216 is applied through a common base transistor 20<SP>1</SP> circuit of complementary type to a pair of emitter follower transistors 118, 218, the output of which is coupled to the load in push-pull fashion with respect to transistors 116 and 216. The circuit through transistor 20<SP>1</SP> provides negative feedback for signal frequencies and also serves to stabilize the D. C. operating conditions. In addition, the base circuit of transistor 20<SP>1</SP> feeds any hum which exists in the supply source into the circuit in anti-phase to that flowing directly into the output stage. Negative feedback is provided from the loudspeaker to the input transistor through a network 84, 82. Resistances may be connected between the emitters of transistors 116, 118 and ground if necessary.
Patent GB-242455-A (GB)
Title: Improvements in porridge cookers
IPC: A47J27/57
Filed: 1924-11-25
Abstract: 242,455. Clarke, B. E. Nov. 25, 1924. Jackets; rims of openings.-A porridge cooker comprises a vessel E formed with a bead or flange F or other means to adapt it to be supported upon the inturned flange C of an outer vessel A which is adapted to rest upon a stove and has series of holes B, D, for passage of the flame gases.
Patent GB-282844-A (GB)
Abstract: 282,844. Foulger, A. E. April 19, 1927. Two - stroke - cycle engines; cylinders, pipes for. - In an engine having a cylinder and piston each of two diameters, combustible mixture and scavenging air are compressed in an annular pump space a and the crank chamber 4, respectively. Air is admitted to the crank chamber through a ported crank shaft and combustible mixture enters the annular pump space through ports g leading to an inlet passage containing a non-return valve S. The delivery passages from the pump spaces are formed in the wall of the cylinder and are controlled by valves 7 and 12 having large heads joined to their stems by steep curves to deflect the charges entering the cylinder.
Patent GB-761664-A (GB)
Title: A process for the descaling of sugar factory evaporators and other heat transfer equipment
IPC: C13B25/00
Filed: 1953-10-15
Abstract: A process for descaling sugar evaporators and other heat transfer apparatus comprises treating the apparatus with a hot alkaline solution of a sequestering agent, treating the spent agent by bringing the pH value of the solution to below 6, filtering off the precipitate, and making the solution alkaline to pH11 with an alkali metal hydroxide.  The sequestering agent may be a sodium, preferably the tetrasodium, salt of ethylenediamine tetra acetic acid or an alkali salt of gluconic, arabonic, or other hydroxy-acid, or derivatives of ethylenediamine tetra acetic acid.  The spent agent may be treated with sulphuric acid with or without soluble sulphates, phosphoric acid with or without soluble phosphates, hydrofluoric acid with or without soluble fluorides, or sulphur dioxide.  The alkali metal hydroxide may be sodium hydroxide.ALSO:A process for descaling sugar evaporators and other heat transfer apparatus comprises heating the apparatus with a hot alkaline solution of sequestering agent and treating the spent agent by bringing the pH value of the solution to below 6, filtering off the precipitate and making the solution alkaline to pH 11 with an alkali metal hydroxide.  The sequestering agent may be a sodium, preferably the tetra sodium, salt of ethylenediamine tetra acetic acid or an alkali salt of gluconic, arabonic, or other hydroxyacid or derivatives of ethylenediamine tetra acetic acid The spent agent may be treated with sulphuric acid with or without soluble sulphates, phosphonic acid with or without soluble phosphates, hydrofluoric acid with or without soluble fluorides or sulphur dioxide.  The alkali metal hydroxide may be sodium hydroxide.
Patent GB-1409163-A (GB)
Title: Removal of mercury from gas streams
IPC: C25B1/36
Filed: 1973-06-15
Abstract: 1409163 Removing mercury vapours UNION CARBIDE CORP 15 June 1973 [16 June 1972] 28519/73 Heading B1L An effluent gas stream containing mercury, water vapour and hydrogen at a temperature of 32-100‹F and a relative humidity of greater than 60 percent is heated to decrease the relative humidity to below 50 percent and then the mercury is selectively absorbed on activated carbon. The mercury is recovered during regeneration with steam or benzene. It is advised to reduce any other condensible constituent to below 50 percent of its saturation pressure.
Patent GB-301453-A (GB)
Title: Improvements in or relating to tubular rotary crystallisers or crystalliser-boilers
IPC: C13B30/02
Filed: 1928-10-04
Abstract: 301,453. Lafeuille, F. Nov. 30, 1927, [Convention date]. Serpentine-tube apparatus.-A tubular rotary crystallizer comprises a cylindrical casing 1 within which a substantially jointless heating system is provided consisting of pipes arranged in groups between stay plates 4, 5, the apertures of the inlet tubes being led to a crown 6 and the outlets to a crown 7. The convolutions of the pipes are arranged in spiral or other curves and the joints with the elbow pieces at the ends are made by welding. Hot water is circulated through these pipes by a pump 14, steam being led into the heating-system through a pipe 16. Massecuite enters through a stationary pipe 18 in which a screw 38 connected with the rotating casing 1 is situated, the passage of the massecuite into the casing being assisted by a vacuum maintained in a chamber 2, the vacuum intake being through a pipe 19. Syrup may be introduced through a valve 33, valves 35, 36 serving to clean the pipes by means of a steam jet. Specifications 245,114 and 252,686, [both in Class 32, Distilling &c.], are referred to.
Patent GB-1035399-A (GB)
Title: Improvements in or relating to klystrons
Inventor: CAMPBELL PETER STANLEY
IPC: H01J19/74
Filed: 1964-07-10
Abstract: 1,035,399. Klystrons. ENGLISH ELECTRIC VALVE CO. Ltd. June 15, 1965 [July 10, 1964], No. 28580/64. Heading H1D. A high power klystron in which a hollow collector 2 (Figure not shown) is spaced from the adjacent end of the last drift tube 1 by a ceramic member 8 which forms part of the vacuum envelope has a half-wave choke to prevent the loss of high-frequency energy from the gap between the collector and the drift tube, the choke being external to the gap and short circuited at its outer end outside the evacuated space of the klystron. The choke is formed by the radial length of the gap, the longitudinal space formed between the outer surface of the collector and a metal coating M formed on the inner surface of the ceramic member, and the longitudinal space between the coating on the inner surface and a further metal coating M on the outer surface of the ceramic member; the choke is short circuited by a metal foil wrapping 13 in electrical contact with the further metal coating. The inner metal coating is electrically connected to a ferromagnetic flange 7 which also supports the drift tube, and the outer metal coating is electrically connected to a portion of the collector which is liquid cooled.
Patent GB-840149-A (GB)
Title: Omnidirectional beacon antenna
IPC: H01Q3/14
Filed: 1958-09-05
Abstract: 840,149. Aerials. STANDARD TELEPHONES & CABLES Ltd. Sept. 5, 1958 [Sept. 11, 1957], No. 28586/58. Class 40 (7). An aerial system for producing a rotating multi-lobed radiation pattern such as is required at a TACAN radio beacon station, consists of a central vertical unipole 3 having an inverted conical unit 2 above it and a rotatable ground plane 1 below it on which are mounted parasatic radiation pattern forming elements 18 and 19. It is preferred to provide a second ground plane 16 an odd number of quarterwavelengths below the first to further reduce radiation below the horizontal. The aerial system has good vertical coverage and good band width. The unipole 3 is fed from the central conductor of a rigid coaxial line 6 which merges into a feeder 5. An r.f. choke 8, 9 of inverted cup shape is mounted on the outside of the line 6 three-quarters of a wavelength below the unipole. This, together with the quarter-wavelength tube 10 mounted on insulator 11 symmetrically about the unipole feed-point, prevents the transmission line acting as a radiator. A dielectric cylinder 12 surrounds the stationary aerial and feeder unit. Concentric with cylinder 12 is a further dielectric cylinder 13 rotated by motor 14. This carries counterpoise surface 1 and second counterpoise 16 which are electrically connected by conductive cylinder 17 attached to the dielectric cylinder. To produce the complex multi-lobed pattern required for TACAN a single parasitic element 18 is mounted above the inner edge of counterpoise 1 and nine equally-spaced parasitic elements 19 round its outer edge. The elements 18 and 19 may be either a half-wavelength long and isolated from the counterpoise or a quarter-wavelength long and connected thereto. Outer elements 19 may slope inwards and be supported by insulators attached to the cone 2 in which case it is necessary to mount the cone on top of cylinder 13, as shown. If the elements 19 are vertical it is preferred to support the cone 2 on top of the stationary cylinder 12 to reduce the weight of the rotating structure.
Patent GB-779585-A (GB)
Title: Blown discharge gap switch
Inventor: DUNBAR COLIN ROBERT
IPC: H01T2/02
Filed: 1954-10-05
Abstract: 779,585. Discharge apparatus. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 4, 1955 [Oct. 5, 1954], No. 28665/54. Class 39(1). A blown discharge gap switch for handling pulse powers of 20 MW at pulse repetition rates in excess of 250 pulses per second without undue heating of the electrodes or excessive electrode wear comprises cathode in the form of two metal plates 1 and 1a each having two pole pieces extending towards the centre, distance pieces 2 and 2a, metal rings 3 and 3a conveniently of brass, and insulating end pieces 4 and 4a bolted together to form a cylindrical chamber. A trigger electrode 5 in the form of a metal tube screwed through a tapped hole in the centre of end piece 4 is provided with holes 7 and carries an insulating cup 6. An anode 8, screwed into a tapped hole in end piece 4a, may be a metal rod or tube with a rounded end or, as shown, a tube having a solid metal end piece. Air is blown through the trigger electrode 5 and escapes through the two channels formed by the distance pieces 2 and 2a between the cathode plates 1 and 1a. Air issuing through the holes 7 is deflected by the cup 6 into the gap between the trigger electrode 5 and the cathode 1, 1a. Additional inlets for air may be provided through the metal rings 3 and 3a and there inlets may be directed to give the air inside the cylinder an swirling motion. The rings 3 and 3a may be water-cooled. The holes 7 and cup 6 may be omitted, and a single cathode plate used, in which case outlets for the air are provided through the rings 3 and 3a. Specifications 578,510 and 594,402 [both in Group XL] are referred to.
Patent GB-1243132-A (GB)
Title: Back hoe apparatus
Inventor: HAYNES FREDDIE JUNIOR
IPC: E02F3/40
Filed: 1969-06-06
Abstract: 1,243,132. Impelling tools. F. J. HAYNES. 6 June, 1969, No. 28731/69. Heading B4C. [Also in Division E1] A bucket for a back hoe apparatus has a plurality of teeth 118 on rods 112 spaced transversely from each other across the bucket and driven outwardly from the bucket by a sealed driving unit 60 comprising a cam-shaft 88 having a plurality of cam lobes 96 to urge the rods 112 outward. The lobes for adjacent rods are out of phase. The shaft 88 is rotated by hydraulic motor 70. The unit 60 is mounted between the bottom wall 34 of the bucket, is sealed by gaskets 124 and 134, and is immersed in a lubricant. The bucket has bracket plates arranged with interchangeable sleeves to fit various sizes of back hoe booms. In a modification a spiral spring is positioned around each rod 112 to urge the rod against shaft 88.
Patent GB-1012406-A (GB)
Title: Improvements in or relating to the dispersion-strengthening of metals
Inventor: DERHAM LESLIE JACK
IPC: B22F9/04
Filed: 1963-07-19
Abstract: In a process of forming an oxide dispersion strengthened metal such as Pb or Cu, the molten metal is granulated to form particles statistically in the range 0.1-10 mm., which are then ball milled in an atmosphere containing 1-21% volume of oxygen, the oxide coated particles being finally extruded or rolled. Prior to granulating the molten metal may be treated with an oxidizing gas. Examples are given of hot and cold extrusion at a reduction ratio of 30:1.
Patent GB-429564-A (GB)
Title: Prevention of incrustation in boilers and the like
IPC: C02F1/48
Filed: 1934-10-08
Abstract: 429,564. Preventing and removing incrustation. RITTER, J. GERBER-, 15, Jurastrasse, Berne, Switzerland. Oct. 8, 1934, No. 28815. Convention date, Oct. 6, 1933. [Class 123 (i)] Incrustation in boilers and the like is prevented or removed by connecting one lead of a source of alternating current of 110 or 220 volts through several condensers of 50-1000 cm. capacity in parallel to the object in contact with water. The second lead is connected to an insulated electrode in the water, through a resistance which allows the passage of a current of about 150 milliamperes. In the Specification as open to inspection under Sect. 91, the condensers and resistances are stated to be adjustable. This subjectmatter does not appear in the Specification as accepted.