baber/WOPTO huggingface dataset:
Patent GB-946763-A (GB)
Title: Improvements relating to compressed fluid braking apparatus
Inventor: WASHBOURN JACK
IPC: B60T15/30
Filed: 1960-02-17
Abstract: 946,763. Fluid pressure brakes. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 17, 1961 [Feb. 17, 1960], No. 8625/60. Heading F2F. A triple valve comprises a diaphragm 11 acted on by brake pipe pressure in a chamber 22 and by auxiliary reservoir pressure in a chamber 24, the diaphragm being arranged by a reduction in pressure in chamber 22 successively to move a release closure member 32 against a seat 30 and then move a closure member 35 away from a seat 28, to cause air to pass via sleeve 25 and conduit 27 to a braking cylinder to effect braking, and the closure member 35 moves back on to the seat 28, assisted by auxiliary reservoir pressure acting on it, as the lap condition is reached, closure member 32 then remaining upon seat 30 and auxiliary reservoir pressure being in excess of brake pipe pressure. In order to maintain lap stability up to maximum braking, the closure member 32 is formed as a piston having a hole 43 drilled through it whereby brake cylinder pressure acts on its underside on a larger area than that engaged by the seat 30, so that as cylinder pressure increases closure member 32 is more firmly seated to counteract the reducing differential between auxiliary reservoir pressure and cylinder pressure. A piston 37 is acted on by the diaphragm via a rod 41 to effect recharging of the auxiliary reservoir upon release of the brake. Specification 846,314 is referred to.
Patent GB-511698-A (GB)
Title: Improvements in or relating to air-space insulated electric conductors
IPC: H01B11/18
Filed: 1938-02-22
Abstract: 511,698. Cables. SHEVLIN, J. T. (Siemens & Halske Akt.-Ges.). Feb. 22, 1938, No. 5638. [Class 36] A cable comprises a single inner conductor separated by at least one air-space insulation layer from a surrounding screen or return conductor, the insulation layer, or that insulation layer immediately surrounding the inner conductor being formed by a self-supporting spacing structure composed of at least one self-supporting open helical spacing member of insulating material, the inner conductor lying freely within the spacing structure which has an internal diameter at least fifty per cent. larger than the diameter of the inner conductor. The spacing structure is preferably of polystyrol As shown in Fig. 2, a spacing structure 21 surrounding a conductor 20 consists of a self-supporting open helical thread 22 wound with a thread 23. An insulating band winding 24 surrounds the structure 21, over which winding is successively applied a return conductor 25 formed of metal bands, a retaining winding 26 for the bands of the return conductor, a closed insulating band winding 27 and a waterproof sheath 28. In a modified construction the thread winding 23 is omitted and a second air-space insulation layer may be provided by arranging between the band winding 24 and the return conductor an open cord winding surrounded by a closed band winding. Fig. 6 shows a construction in which a return conductor or screen 65 is formed of metal braid applied over an insulating sheath 63 surrounding the spacing structure 62 and formed by extension or as a closed band winding. The return conductor or screen is surrounded by a woven or extended insulating jacket 66. The sheath 63 may be omitted and the spacing structure 62 may be formed of two coaxial helices. The outer jacket 66 may be permeated or coated with aluminium powder or other substance having a metallic lustre.
Patent GB-1434146-A (GB)
Title: Absorption refrigeration apparatus
IPC: F25B33/00
Filed: 1974-02-07
Abstract: 1434146 Rectifiers SARLAB AG 7 Feb 1974 [13 Feb 1973] 5642/74 Heading F4H A boiler and rectifier unit for an absorption refrigeration system comprises two pipes 10, 11 one within the other, connected to an absorber by a heat exchanger 12 and to a condenser by a vapour conduit 20, a pump pipe 13 disposed inside and welded to the inner pipe 10, and an electric heating cartridge 16 or flue pipe 19 adjacent the outer pipe 11. The rectifier section includes constrictions 22 made by dies. Each constriction includes at least one radially outwardly extending portion 24, such that one or more than one portion of the width of the annular space between the pipes is relatively wide in cross-section as compared with one or more than one other narrower portions 25. The outwardly extending portions are angled at 23 so that liquid is able to flow by capillary action downwards countercurrent to vapour flowing upwardly. The width of each narrow portion does not exceed 1 mm. Indentations (21, Fig. 3) are made in the outer pipe 11 to locate the inner pipe concentrically. The rectifier may be constructed so that one constriction 22 is turned 90 degrees relative to an adjacent constriction.
Patent GB-103910-A (GB)
Title: Improvements in Means for Injecting Water into the Cylinders of Internal Combustion Engines.
Inventor: SAMUEL WILLIAM
IPC: F02B47/02
Filed: 1916-04-19
Abstract: 103,910. Samuel, W., and Jones, W. A. April 19, 1916. Water, supplying to cylinders.-An injector worked by the pressure of the explosion is screwed into the head of the cylinder. The explosion acts upon the underside of the piston d, which carries, through a resilient rod e, a water-inlet valve f. On the piston rising against the spring q, the valve f is first closed, and then lateral ports n are uncovered, through which the water escapes into the engine cylinder. According to the Provisional Specification, the water may enter the injector through a hollow piston-rod and escape through a port in the piston controlled by a ball valve.
Patent GB-181781-A (GB)
Title: A new or improved process for coating iron or steel articles with lead with or without other metals
IPC: C23C18/31
Filed: 1921-02-19
Abstract: 181,781. Jackson, W. J. Mellersh-, (Leadizing Co.). Feb. 19, 1921. Coating.-Iron or steel articles are coated with lead by immersion in a heated aqueous solution of lead acetate containing acetic acid. The solution contains approximately 40-50 per cent by weight of lead acetate, and 5 per cent cr more of acetic acid, and is maintained at a tempera ture between 160-180‹ F. The coated articles, on removal from the bath, are washed to remove iron acetate and so to prevent rusting. To increase the density of the coating and render it smoother, the coated article may be immersed in a bath of zinc chloride and sodium chloride, preferably in the proportions of SO per cent and 20 per cent respectively, maintained at a temperature of approximately 650‹ F. In treating malleable-iron castings or other articles with a somewhat rough surface, about 5 per cent of tin chloride is. added to the bath, the proportion of sodium chloride being correspondingly reduced. A. thin film of tin is deposited on the lead coating. The lead coating process, either with or without the subsequent treatment in the zinc chloride bath, may be employed for coating iron or steel articles prior to the electrodeposition thereon of a coating of copper or nickel. The process may also be employed for coating billets for use in the manufacture of cold-drawn steel tubes, the lead serving for lubricating the billets for the drawing operation and giving the finished tubes a highly polished rust-proof surface. Except where the billets are to be subjected to a large number of passes, the usual lubrication or " doping " may be dispensed with. The coating process may also he utilized in connection with 'blanks to be employed in stamping operations.
Patent GB-871705-A (GB)
Title: Ball throwing device
IPC: A63B69/40
Filed: 1960-02-18
Abstract: 871,705. Ball projectors. COOK, J. E. Feb. 18, 1960, No. 5822/60. Class 132(2). A projector for light balls 127 comprises an open topped housing which has a downwardly tapering recess which is U-shaped in cross-section and includes a vertical rotor 118 rotated (clockwise in Fig. 4) by an electric motor 132. The balls are dropped into the recess between guide blocks 108, 110 extending down one end of the recess and under the rotor. The latter comprises three discs 120, 122, 124 between different pairs of which are clamped two resilient fins 126, 128 each extending over about 180 degrees and occupying different arcs. One or other of the fins engages the ball between blocks 108, 110 andurges it into the path of the leading edge of the other fin which then carries it round and projects it upwards. The direction of projection is random depending on which fin engages the ball and due to the tapering outlet end of the recess.
Patent GB-455605-A (GB)
Title: Fumigant compositions and the manufacture thereof
IPC: A01N25/18
Filed: 1935-02-23
Abstract: Volatile fumigants for use in unconfined spaces, for instance in treating the soil, are dissolved or dispersed in a gelatine solution which is then allowed to set a jelly and preferably is hardened by addition of an agent such as formaldehyde or potash alum.  The preparation is shredded or otherwise disintegrated for use.  The fumigants employed are carbon disulphide, hydrocyanic acid, chloropicrin, and volatile mercaptans such as ethyl mercaptan.  The prior use of carbon disulphide absorbed in kieselguhr is referred to. Specification 368,423 is referred to.
Patent GB-230456-A (GB)
IPC: C25D1/04
Filed: 1925-03-03
Abstract: 230,456. M³ller, C. March 4, 1924, [Convention date]. Metal foil.-Thin metal foils, particularly for use as telephone diaphragms, are made by depositing successively on a base first a layer of protecting material, then the desired foil and then a second layer of the same protecting material, removing the triple foil from the base, and dissolving or etching away the protective layers. In an example a polished nickel surface is provided with a weakly adhering layer of copper of about 0.005 mm. thickness by electrolysis in an acid bath. On this is deposited a layer of nickel 0.0001 mm. thick and then a second copper layer 0.005 mm. thick. The triple foil is detached mechanically and suitably mounted as a diaphragm, after which the copper layers are removed bv means of an ammonia solution mixed if desired with oxidizing agents; electrolysis may be employed in the removal. The nickel may then be coated lightly with an impermeable substance or one preventing oxidation. The nickel film may have a corrugated form owing to the roughness of the preceding copper layer; this enhances its strength. The effect may also be produced by suitably shaping the base on which the layers are deposited. The triple foil may be rolled and the outer layers partially etched before mounting. The foils may be made of varying thickness according to mechanical or other requirements. Diaphragms for the optical recording of sound may be provided with apertures for controlling light-beams. The outer layers of the triple film may be provided with a magnetizable edge which remains after the rest of the layers are removed; this edge preferably has the same coefficient of expansion as the diaphragm. Alternatively the diaphragm may be of chromium steel or of iron alloys having high permeability or of alloys containing borax and silica. The backing layers may be of zinc or of a non-metallic substance such as varnish. The deposition may be effected by spraying, sublimation, or by chemical means instead of bv electrolysis.
Patent GB-486153-A (GB)
Title: Improvements in the oxidation of chromium sulphate to chromic acid
IPC: C01G37/033
Filed: 1937-02-26
Abstract: The oxidation of chromium sulphate in sulphuric acid solution to chromic acid is effected by means of lead dioxide obtained by hydrolysis of the alkali metal plumbate formed by the treatment of lead oxide, hydroxide or carbonate with alkali carbonate or bicarbonate and air at temperatures of say 700-800 DEG  C.  The mixture of lead oxide and sulphate resulting from the oxidation, if desired after conversion of the sulphate to oxide by caustic alkali, may be converted to alkali plumbate, and the latter be hydrolyzed to obtain caustic alkali, and lead dioxide for re-use. In an example, excess of lead dioxide is used with a first solution, and the excess used up by treating a second solution. The lead oxide-lead sulphate residue is treated with dilute caustic alkali, and after washing and drying, ground with soda ash and passed through a rotary furnace in a strong current of air at a temperature rising from 730-780 DEG  C. The product is hydrolyzed by heating with a little water at 70-80 DEG C., yielding a concentrated solution of caustic soda, and a residue which is used again.
Patent GB-139521-A (GB)
Title: Improvements in and relating to rotary electric hand drills
IPC: B23B45/00
Filed: 1920-02-28
Abstract: 139,521. Siemens - Schuckertwerke. June 26, 1914, [Convention date]. Drilling-machines. - An electrically-operated drill for use in mines has means to disengage automatically the drill drive on the pressure being removed, thus avoiding the necessity of switching the motor on and off and causing sparking. The drill spindle f carrying a double clutch portion e at its upper end is mounted in a sleeve g which is positioned in the drill frame by means of springs i and a collar k on the sleeve so as normally to maintain the clutch portion in a neutral position. This clutch portion is enclosed by a casing c having upper and lower sets of clutch teeth and which is adapted to be continuously rotated by a pinion b from the motor shaft. The drive occurs through the upper clutch portion on pressure being applied to the drill, automatic disengagement taking place as soon as the pressure is relieved. Should the drill stick, engagement occurs between the lower clutch portion, and the drill is again rotated to free itself. In a modification, the double clutch portion may be continuously driven by the motor and adapted to engage upper and lower clutch portions on the drill spindle or the drill spindle sleeve may be omitted. In a further modification, the drive may be direct to the drill spindle, the gears disengaging automatically on removal of the pressure.
Patent GB-125217-A (GB)
Title: Improvements in and relating to Washers, Rings, and the like for Manhole and like Doors, for Tanks and other Receptacles, and for other purposes.
Inventor: CROLL JAMES TURNBULL
IPC: F16J15/10
Filed: 1918-04-11
Abstract: 125,217. Croll, J. T. April 11, 1918. Joint-making packing.-Washers or rings &c. for man-hole doors, tanks, &c. are manufactured from paper or mill board &c. which is impregnated with various substances according to the use to which the washer is to be put. The paper &c. is then arranged in layers and compressed, and is finally cut to the desired shape. The impregnating substances for water-tight joints may be paraffin wax and india-rubber solution and for steam, air and gas tight joints a mixture containing white or red lead. Similarly, oil or acid resisting substances may be employed for impregnation. Specifications 2447/74, 3946/77, 2389/84, 11732/84, 10867/86, 12230/90, 19729/97, and 22894/99 are referred to.
Patent GB-1241517-A (GB)
Title: A method to facilitate the passage of fluids through wood
Inventor: GOULET MARCEL
IPC: B27K5/00
Filed: 1969-02-05
Abstract: 1,241,517. Fluid-treatment of wood. M. GOULET. 5 Feb., 1969 [23 May, 1968], No. 6160/69. Heading D1P. [Also in Divisions A5 and F4] Wood may be dried or impregnated with a fluid e.g. a preservative, after compressing it transversly to the grain, allowing it to recover and placing it in the required environment for transfer of fluid. The pressure applied is near to the elastic limit of the wood but less than that which would permanantly damage it. Platens or pressure rolls may be used in applying the transverse pressure. Yellow Birch may be dried in one sixth of the normal time by compressing boards to near the elastic limit followed by steaming and kiln drying. Eastern Spruce may be impregnated by subjecting it to a vacuum, simultaneously releasing the vacuum and introducing the preservative, followed by the application of pressure.
Patent GB-124222-A (GB)
Title: Improvements in Knot-tying Apparatus.
Inventor: WRIGHT RICHARD HARVEY
IPC: B65H69/04
Filed: 1919-03-12
Abstract: 124,222. Wright, R. H., (Assignee of Byrd, B. E.). March 17, 1917, [Convention date]. Knot-tying devices. - The tying bill 53, 54 is carried by a shaft 48 journaled in a bushing 44 and on a pintle screw 47 which are supported by the flanges 42, 43 of a plate 40 secured to the main support which comprises a plate 1 with front and rear flanges 3, 4. The top of the support is closed by a cover 58 which is held on the plate 40 by a pin 64 and aperture 63 and a spring catch 61, and carries a support 39 for the thread ends. The shaft 48 is rotated by a worm 49 thereon engaged by a toothed segment 15 mounted on a pivot pin 11 and actuated by a thumb-piece 6. The segment is normally held in abutment with the rear flange 4 by a spring 17. The bill is opened during its rotation by engagement of tail of the part 54 with an eccentric thimble 65 mounted in the aperture 60 on the cover-plate 58. The means for withdrawing the knot comprises two spaced arms 29 pivoted at 32 on opposite sides of a plate 27, joined by a web 31 and provided with fingers 30. Another arm 33 pivoted to the plate 27 at 38 and provided with a hook 37 has an extension 35 which lies between the arms 29 and oppositely extending lugs 36 which engage the lower edges of the arms. The hook 37 and the fingers 30 have thus relative longitudinal movement to grip and release the thread, and a small amount of lateral movement. The plate 27 is pivoted on the outside of the supporting plate 1 by a pin which carries on the inside of the support a cam plate 21 engaged by a roller 18 on the operating segment 15. The support is provided with a handle 2 and strap.
Patent GB-966450-A (GB)
Title: Improvements in and relating to flange couplings and method for assembling the same
IPC: F16L23/036
Filed: 1963-02-15
Abstract: 966,450. Pipe joints; pressure-resisting doors. LUMMUS NEDERLAND N.V. Feb. 15, 1963 [Feb. 16, 1962], No. 6299/63. Headings F2G and F2P. In a flange coupling for connecting two adjoining flange parts of a high-pressure vessel such as two sections 1, 2, Fig. 1, of a highpressure pipeline, or a cover 24, Fig. 8, of a pressure vessel 22, the two flanges 3, 4 have coinciding bolt holes 13 disposed in a circular row and bolts 14 passing therethrough and sealing means 12 are provided between the parts, the flanges having annular recesses 5, 6 the bottom walls of which have annular grooves 7, 8. The recesses form an annular circumferential cavity of substantially U-shaped crosssection with the bolts holes 13 opening into the cavity, and a split coupling ring consisting of a number of sections 15 are arranged in the cavity with the body of the sections closely fitting between the radial side walls of the recesses and with two annular portions 16 of the ring projecting radially inwards and engaged in the grooves 7, 8; the coupling further has a number of bolts holes 17, at least one for each ring section, coinciding with the bolts holes in the flanges and through which the bolts 14 pass so as to lock the ring sections against radially outward movement. In assembling the coupling, the flanges are first drawn together by the bolts 14 to compress the gasket 12, and the bolts are then removed one by one to allow insertion of the sections 15, the bolts then being reassembled. The sections 15 relieve the bolts of the high operational pressures within the pipes 1, 2. In modifications, (a) clamping jaws temporarily engage the flanges 3, 4 while the bolts are withdrawn for assembly of the sections 15, (b) an assembly for a pressure vessel 22 includes a backing ring 31 between the collar 32 of which and a shoulder 36 of a cover 33 a gasket 37 is compressed by the pressure within the vessel; the oval-shaped cover is locked in position by bolts 39 and is movable by pressure within the vessel to compress the gasket. The gasket may be an 0-ring located in a groove in one of the flanges or of trapezium shape disposed in grooves of the flanges and opening inwardly to the bores of the pipes. The portions 9, 10 of the flanges may be connected by a sealing weld.
Patent GB-390307-A (GB)
Title: Improvements in or relating to thermionic relay systems for indicating the presence of persons or objects
IPC: G08B13/26
Filed: 1932-03-02
Abstract: 390,307. Valve circuits. DOBOSZ, F., 2, Mortaraplatz, Vienna.. March 2, 1932, No. 6324. Convention date, March 17, 1931. [Class 40 (v).] A gas-filled rectifier valve 1, comprising a heated cathode 2 and one or more anodes 3, 4 between which an arc-like discharge occurs, operates a relay 9 when the discharge steam through the valve is initiated or stopped by the capacity effect of an approaching person or body. A plate 18 connected through a condenser 19 to the supply transformer provides an auxiliary electrostatic field to render the device more sensitive in operation. Or a plate 25 energized from a second transformer 24 may be utilized for the same purpose ; the lead to the plate 25 may include a resistance and a condenser, or an earthed conductor may be located near the triggered valve. Or the arrangement may be placed within the field of concentrated rotation from a high-frequency source. The plate 18 may be connected to the metal coating on the inside surface of the glass bulb. Or a sheet of metal mav be inserted inside or outside the glass bulb to increase its sensitivity: The device may be used as a signalling device for railway or road traffic.
Patent GB-1254682-A (GB)
Title: Improvements in apparatus for polishing wash basins and baths and other vessels
IPC: B24B19/00
Filed: 1970-02-11
Abstract: 1,254,682. Polishing. METABOWERKE K.G. CLOSS RAUCH & SCHNIZLER. 11 Feb., 1970, No. 6459/70. Heading B3D. Apparatus for polishing wash basins, etc., comprises a movable drive shaft 1 bearing a polishing tool 4, the shaft 1 being pivotable about a joint 5 on striking a workpiece side wall 37, and a changeover switch 21 actuable by the drive shaft 1 on pivoting to reverse the spindle movement. A spindle mounting tube 2 supporting a drive motor 3 is connected to a bracket (7), Fig. 3 (not shown), of a carriage 8 by a pivot shaft 6, the carriage 8 being adjustable on rails 11, 12 of a frame 13 by means of a pneumatic piston/cylinder unit 14 acting on a pin 18 borne by the carriage through a slotted plate 16. The frame 13 is supported on a swivel plate 27, pivotally adjustable on a flange 32 of an arm 26, Fig. 1, by means of setting screws 33, the arm 26 being pivotable on a spindle 28 of a support 29 through a second pneumatic piston/cylinder unit 30. An adjustable stop 23 attached to the carriage 8 is co-operable with a counter pressure regulator 22 to govern the pressure of the tool 4 against the workpiece 25. In operation, when the tool 4 strikes the side wall 37, the tube 2 is pivoted against a spring 20 to actuate the changeover switch 21, a further changeover switch 35 governing pivoting of the arm 26 about the spindle 28, automatic polishing of the workplace 25 on a rotating turntable 36 being thus facilitated.
Patent GB-137953-A (GB)
Title: Improvements in belt transmission gearing
IPC: F16H61/662
Filed: 1919-03-15
Abstract: 137,953. Milne, J. March 15, 1919. Change-speed gearing.-In variable-speed belt gearing for motor-cycles &c. of the expanding- pulley type, the two halves g, h of a driving- pulley are pressed together automatically by cam faces l<3> on two collars l, l<1> on the driving-spindle, and the gear ratio is reduced by increasing the belt tension to force the parts g, h apart. The pulley, which is driven by gearing k, k<1>, is mounted in a bracket d, e swinging round the crank shaft b of the engine and adjusted to vary the belt tension by a rod m. Springs may be used to press the parts g, h together in addition to the cam faces. In a modification, the expanding pulley is mounted directly on the crank shaft b and the belt tension is varied by a jockey pulley. A free-engine position obtains when the belt is sufficiently slack to slip.