baber/WOPTO huggingface dataset:
Patent GB-582938-A (GB)
Title: Improvements relating to spark gaps
IPC: H01T4/12
Filed: 1942-11-04
Abstract: 582,938. Spark-gaps. JONES, F. L. Nov. 4, 1942, No. 15534. Addition to 582,932. [Class 39 (i)] [Also in Group XXVII] In an enclosed spark-gap of the kind described in the parent Specification, deposits of oxides of the materials of the electrodes are produced on the electrode surfaces, or on the inner surface of the envelope near the gap, or on the electrode supports, during the manufacture of the device before it is sealed off with the operating gas filling. The presence of these oxides prevents the formation of arcs, improves the consistency of sparking and prolongs the life of the electrodes. The deposits may be formed by sparking between the electrodes in air or by sprinkling the oxide on the electrodes before sealing them into the envelope. The preferred filling is nitrogen, with tungsten electrodes. If two or more such devices are operated in parallel their life is increased and failure of one of the gaps by virtue of a crack in the envelope may be rendered harmless by so arranging the characteristics of the gap that the break-down potential of a gap filled with atmospheric air is higher than that of the other gaps in combination. The gaps may be all enclosed in a single envelope, but preferably a number of gaps, for example, four, are packed together in a small volume for ease of replacement.
Patent GB-403993-A (GB)
Title: Sachel for pharmaceutic and like products
IPC: B65D5/20
Filed: 1932-06-02
Abstract: 403,993. Sachels or cartons for pulverulent materials. RAFFALLI, A., 50, Rue Doudeauville, Paris. June 2, 1932, No. 15617. Convention date, June 2, 1931. Addition to 365,001. [Classes 18,94 (i), and 94(ii).] Tetrahedron-like sachels for pulverulent materials, according to the parent Specification, are grouped into a compact polyhedral volume in a box, wrapper, &c., without loss of space. A box 10, 11 comprises a receptacle 9 shaped as part of an icosahedron to which the interior of the lid 10 is complementary. Tetrahedron-like sachels ABCD are placed within, the apices A meeting at the centre. On sliding the lid down it will fit on to the top portions of the upper sachels retaining the group in position. Alternatively the sachels may be grouped by a wrapper, Fig. 3, which folds into an icosahedron, held in form, e.g. by means of tongues and slots 45, 46, the sachels being attached, if desired, to those faces formed as a complete equilateral triangle.
Patent GB-503662-A (GB)
Title: Improvements in fruit-pitting machines
IPC: A23N4/02
Filed: 1938-05-25
Abstract: 503,662. Stoning fruit. FROVA, G. May 25, 1938, Nos. 15664, and 15665. Convention dates, June 3, 1937 and Oct. 27, 1937. [Class 28 (ii)] Relates to improvements in the fruit-stoning' machine described in Specification 402,270. The holes 1 in the plate 33 which holds back the fruit when the stoning-tool is retracted, are made of large size, and are covered on the side facing the plungers 52, by small plates 5 having substantially triangular apertures 11 and having notches 6, 7 which loosely engage pins 3, 4 diametrically disposed relatively to the holes 1, so that limited rocking motion of the plates 5 in their own plane, due to a stone 16 being out of centre as shown in Fig. 2, is permitted. The plates are retained in position by heads 4<1> on the pins 4 and a channel member 9 at the top of the plates 33, 5. Resilient members 8, e.g., rubber pins or coiled springs, are interposed between the plates. The edges of the apertures 11 are chan.fered. The plungers 52 are formed with chamfered extensions 42, arranged peripherally around the operative end which pentrate into and centre the fruits. The jaws of the stoning-tool operate in the spaces between the extensions 42, and their disposition relatively to the aperture 11 is shown at 13 .. 15, Fig. 2. The cam 26 for effecting the opening and closing of the jaws is shown in Fig. 8. The arc I of the cam effects a partial closing of the jaws to permit their passage through the stone-retaining and fruitretaining cross-plates. The arc II effects a complete closing around the stone followed by a rapid snap-opening caused by the depression 47 in the arc III. The jaws have cutting-edges on the outer sides of their ends, the snapopening thus producing radial cute in the fruit, which subsequently extend during the extraction of the stone. The arc IV keeps the jaws closed during the extraction of the stone and the arc V effects a gradual opening to permit the stone-retaining plate to remove the stone from the jaws.
Patent GB-1112892-A (GB)
Title: Silver halide photographic materials
Inventor: RASCH ARTHUR ALLYN
IPC: G03C1/76
Filed: 1965-04-13
Abstract: Sensitive photographic material comprises a support having deposited thereon by vacuum deposition superimposed contiguous layers of a silver halide and an alkali-metal halide such as sodium chloride, potassium chloride or potassium bromide.  The alkali-metal halide may be above and/or below the silver halide layer and increases the speed of the latter.  The material is exposed, developed and fixed in the normal way.  Supports specified are glass, casein-clay-coated paper, pigmented poly(vinyl alcohol)-coated paper and polyester film base.
Patent GB-1281118-A (GB)
Title: A data acquisition system for an indoor golf game
Inventor: CONKLIN ROBERT MURRAY
IPC: A63B69/36
Filed: 1970-04-02
Abstract: 1281118 Seaming non-metallic sheet material BRUNSWICK CORP 2 April 1970 [30 April 1969] 15774/70 Heading B5K [Also in Divisions A6 and G4] In apparatus for playing an indoor golf game the ball is received by a generally spherical target surface. The target is made up of four segments bolted together by means of flanges on its metal backing plate 172; stuck to the plates is a thick open-celled layer designed to absorb the energy of the ball. Other layers are applied to the surface of layer 176. Where a join has to be made between adjacent sections the layer 176 is recessed at 196 and a butyl rubber strip 198 is inserted.
Patent GB-979310-A (GB)
Title: Improvements in or relating to material comprising collagen fibres
IPC: D01D5/00
Filed: 1961-05-02
Abstract: Material containing interlocked collagen fibres is prepared by mixing collagen fibres with an aqueous solution of collagen, and adding an aqueous solution of a chromium tanning agent, the mixture being subject to such conditions, particularly as regards temperature and pH, that collagen fibres are precipitated from the collagen solution. In alternative processes, the collagen fibres may be mixed with an aqueous solution of collagen, the mixture formed into a sheet and the sheet treated with an aqueous solution of the chromium tanning agent, or the collagen fibres, collagen solution and the aqueous solution of the chromium tanning agent may be mixed and then formed into a sheet. Preferred chromium tanning agents are chromic chloride and chromic sulphate partially neutralized e.g. with sodium formate.ALSO:Sheets containing interlocked collagen fibres may be prepared either by mixing collagen fibres with an aqueous solution of collagen, forming the mixture into a sheet and treating the sheet with an aqueous solution of a chromium tanning agent under such conditions, particularly as regards temperature and ph, that collagen fibres are precipitated from the collagen solution, or by mixing together collagen fibres, an aqueous solution of collagen and an aqueous solution of a chromium tanning agent, the pH of the mixture being from 2.5 to 5, and forming the mixture into a sheet before substantial precipitation of the collagen from solution has taken place, such precipitation taking place while the mixture is in sheet form.  Preferred chromium tanning agents are chromic chloride and chromic sulphate partially neutralised, e.g. with sodium formate.
Patent GB-376904-A (GB)
Title: Improvements in or relating to combined plug and socket connections and electric switches
IPC: H01R13/527
Filed: 1931-05-30
Abstract: 376,904. Two-part couplings. WILLIAMS, T. H., Fairholme, Queens Road, Beighton, CLARKE, T. H., 17, Springfield Avenue, HARRISON, W., 115, Ashgate Road, and EYRE, E., Woodlands, Walton, all in Chesterfield. May 30, 1931, No. 15833. [Class 38 (i).] Combined with electric switches.-A socket C contains spring plunger contacts D1 carried by discs G, H between which is a spring J. When the disc H is depressed by inserting a plug A into the socket, a pin H1 on the disc moving in a slot C2 in the casing C1 causes the disc H to move first axially downwards, so that the contacts D1 project through openings in it, and then to turn through 90‹ so that the lower end of the contacts D1 is brought into engagement with the live contacts D, E which may be resilient and are mounted in a disc F. The plug A has an insulating casing B and a loose contactcovering disc L with a pair of holes L1 that receive the contacts D1. The plug B is caused to follow the movements of the disc H by means of a slot B1 engaging a pin K fixed in the socket C. When the plug is home in the socket, so that the contacts D1 are live, the slot B2 allows the plug B to be turned back through 90‹ relatively to the disc H so that the contacts N come into line with the contacts D1 and complete the connection to the terminals D2, E2 to which a cable is attached. The plug and socket members fit together to form a flame-proof casing.
Patent GB-960257-A (GB)
Title: Improvements in or relating to methods of manufacturing grid plates
IPC: C23F1/02
Filed: 1961-05-02
Abstract: 960,257. Making grid electrodes. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 2, 1961 [May 2, 1960], No. 15856/61. Heading B3A. [Also in Division H1] A method of making grid plates having parallel metal strips, including the steps of forming a starting metal plate with parallel rows of holes in which the distance between the holes in a row is smaller than the minimum distance between two holes of adjacent rows, applying to one side of the plate, at least on some of the parts lying between holes of the same row, an electrically insulating material, subjecting the plate thus covered to the influence of an etching agent which acts upon the metal but substantially does not act upon the insulating material, and terminating the etch at the end of a period such that holes of the same row grow to a continuous gap, but a continuous metal strip is retained between any two adjacent rows of holes. In a metal plate 1 which has rows of boles 3-3, 5-5, 7-7, the distances a are smaller than the distances b and the plate is entirely covered on one side with a layer of glass 9. The coated plate is etched until the metal between holes in the same row is removed, leaving the glass to form a mechanical connection between the strips. The original holes may be oval or lenticular. The strips may be electrically separated by making the distance between the end holes and the edge of the strip smaller than the distance between the rows so that the metal is etched away as far as the edge. Two comb-like interleaved structures may be obtained by forming a sideways extension to the end holes 43, 45 in two adjacent rows so that during etching the two holes grow together. The holes 51 and 53 are similarly treated and to separate the two combs electrically the edges of the plate are interrupted at 59 and 61. The insulating material may be applied only to the metal between holes in the same row and this may be achieved by placing on the plate a second correspondingly perforated plate with the perforations disposed over the metal between the holes in the lower plate, and applying the material through the holes in the upper plate. When the insulating material is glass a substance such as alundum may be added to prevent the glass forming into drops. Dimensions are given of a typical plate produced by the method. The plate may be curved in one or two directions before or after forming.
Patent GB-916847-A (GB)
Title: Improvements in or relating to centrifugal friction clutches
Inventor: ANDERSON JAMES
IPC: F16D43/22
Filed: 1960-05-05
Abstract: 916,847. Overload-release clutches. ANDEBSON, BOYES & CO. Ltd. May 1, 1961 [May 5, 1960], No. 15919/60. Class 80 (2). In a spring-engaged fliction clutch 5, one set of centrifugal masses 10 assisting engagement is rendered ineffective on clutch overload, causing an opposing set 8 to disengage the clutch. Two axially movable end-plates 7, 9 rotatably connected to a driving-cage 3 and driven sleeve 15, respectively, are held in balanced opposition by radially moving centrifugal masses 8, 10 pressing axially through inclined faces 13, 14 and remain ineffective until overload causes clutch slip and consequent retardation of the driven member, whereupon the masses 10 disengage from the plate 12 and clutch disengagement is effected by the resulting unbalanced thrust of the masses 8. The clutch is reengaged by stopping both driving and driven members.
Patent GB-1086212-A (GB)
Title: Vehicle identification system
Inventor: COUPLAND MICHAEL JOHN
IPC: B61L25/04
Filed: 1963-04-23
Abstract: 1,086,212. Track equipment. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 23, 1964 [April 23, 1963; May 10, 1963], Nos. 5922/63 and 18602/63. Heading B7N. [Also in Divisions G4-G6] A vehicle identification system uses modulated infrared light. In one embodiment the vehicle has position-coded reflectors, Fig. 2, and a static point has a semi-conductor diode lamp 3 energized from a generator 1. Phase-sensitive detector 9 rejects any received signals not having a predetermined phase relative to the output of generator 1. The vehicle may also be provided with another set of reflectors to provide timing pulses at the receiver. Fig. 5 shows an arrangement in which an array of reflectors 23 is provided on the vehicle and a corresponding array of detectors is provided at the receiver. The four corner reflectors provide a control pulse from gate 26 when the vehicle is correctly aligned with the receiver to pass the remaining pulses from the selectively reflected beams. In another embodiment the vehicle carries a lamp which is continuously energized by a code pulse generator. Each group of code pulses may be preceded by a start pulse at a different modulation frequency to enable the receiver at the correct instant. In Fig. 10 (not shown) an array of lamps is energized so that all lamps and only selected lamps are on alternately. This arrangement allows the receiver to block its output when one or more of the lamps fail.
Patent GB-124385-A (GB)
Title: Improvements in Savings Clocks.
Inventor: WIINGAARD AAGE GEORG PETER
IPC: G07F17/00
Filed: 1918-10-01
Abstract: 124,385. Wiingaard, A. G. P. Oct. 1, 1918. Savings boxes; coin action, thrust.-A savings clock comprises a coin-shoot 1 in which is mounted a coin-holder 4 rotated by the clock mechanism and having a slot 10 therein to allow the passage of coins of too small a size. The end 8 of a three-armed lever 5, 6, 7 projects through a slot in the shoot and is engaged by the coin, thus causing the arm 6 to engage a lever 9 which releases the clockwork. Coin-discharging mechanism.-After the expiration of a certain period, the holder will have turned through 180 degrees and have tipped out the coin, but the end lever 8 is still engaged by the holder itself until a complete revolution has been made. The arm 7.of the lever carries a projection 7a which extends across the shoot and is moved into a gap 7<b> therein when the clockwork is released, so preventing the insertion of another coin.
Patent GB-1354022-A (GB)
Title: Sheet like electrical resistance elements
IPC: H01B1/24
Filed: 1971-05-20
Abstract: 1354022 Resistance heating elements KALLE AG and KLIMATECHNIK-ANSTALT 20 May 1971 [22 May 1970] 16012/71 Heading H5H [Also in Division B2] A sheet-like resistance heating element comprises a plastics film with a surface layer of carbon black particles firmly attached without an applied binder, and the individual particles or agglomerates being substantially un-enveloped by electrically insulating material, the layer having a surface resistance of less than 1000 ohms per square, preferably 10-100 ohms per square. The film surface is treated by a solvent or swelling agent which is subsequently removed by heating, and the particles are applied dispersed in the solvent or subsequently. The plastics film is preferably of a stretched polyethylene terephthalate or polypropylene with a 10 to 50 Á thickness. Other polyester or plastics films may be used, including polyvinyl chloride, polyamide and copolymers of isophthalic acid/ terephthalic acid. The heating element surface may be covered with a water-impermeable plastics film. Terminal zones on the resistance layer are made by applying a conductive lacquer including silver particles. A thermocouple arrangement is provided. Copper-stranded lead wires are attached to the terminal zones by silvered copper rivets. Suitable solvents and swelling agents are detailed. The heating elements are used for heating floors, walls, ceilings, tents, halls, pipes, soil, bridges, roads, garage entrances, sports fields, warming cupboards, deck chairs, cushions, carpets, car seats, clothing and in panel heaters.
Patent GB-212866-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B19/06
Filed: 1923-06-20
Abstract: 212,866. Bugatti, E. March 12, 1923, [Convention date]. Flame igniters.-In an engine in which ignition is first effected in an auxiliary cylinder B and then extends to the main cylinder A past a valve C, means are provided for adjusting, during working, the relative positions of the main and auxiliary pistons A<1>, B<1> so as to vary the time of ignition. The piston B<1> drives a crank shaft V connected by helical gears H, F to a secondary shaft G, which is further geared by helical gears E, D to the main crank shaft T. Axial movement of the shaft G, by means of a lever V<1> and fork X, causes relative angular movement between the crank shafts V and T. The auxiliary cylinder is fed from a carburettor P past a valve R, and the main cylinder is supplied through a valve A<2> with a heavier fuel. The ignition in the auxiliary cylinder may be effected by compression alone, or by means of a spark plug J.
Patent GB-552655-A (GB)
Title: Improvements in the coating of articles with liquid
IPC: A23G3/20
Filed: 1941-12-13
Abstract: 552,655. Coating surfaces by spraying. HUNTLEY & PALMERS, Ltd., VICARS, Ltd., T. & T., and RABONE, H. M. Dec. 13, 1941, No. 16105. [Class 95] [Also in Groups VI and XXIX] In apparatus for coating biscuits or other articles with oil or other liquid by scattering the liquid in droplets by flexed bristles or elastic strips, the liquid is picked up from a trough 5 by a roller 7 fitted with an adjustable doctor roller 8, transferred to a roller 10 and removed therefrom by a scraper plate 11, and scattered by a rotary brush 3 or like member the bristles or blades of which are flexed on the scraper plate to produce a flicking action. The biscuits 1 or other articles may be carried on a reticulated conveyer 2 which in its return path is cleaned by brushes &c. 16 delivering surplus liquid to a trough 17. The doctor roller is eccentrically mounted for adjustment and provided with a scraper blade 9, and the rollers may be moved out of the liquid in the trough and the plate 11 may be moved out of the path of the brush.
Patent GB-1005097-A (GB)
Title: Improvements in or relating to cold traps for vacuum systems
Inventor: CRASWELL KENNETH BRIGGS
IPC: F04F9/06
Filed: 1963-04-24
Abstract: 1,005,097. Baffles for use in high vacuum systems. BIR-VAC Ltd. April 24, 1964 [April 24, 1963], No. 16204/63. Heading F1E. A cold trap for a vacuum system has liquid nitrogen-cooled first and second hollow members 4, 6 arranged so that a tortuous passage communicates ports 1A and 1B the passage being peripheral around member 4 and central in the annulus 6. Oil vapour in a diffusion pump system condenses on contact with hemisphere 4 and annulus 6 whilst liquid oil creeping up wall 1 is arrested by rim 8 and annulus 6. Liquid coolant gas, e.g. nitrogen if fed through tubes 5 and 7.
Patent GB-1370100-A (GB)
Title: Oil injected meshing-screw compressors
IPC: F04C28/12
Filed: 1972-08-17
Abstract: 1370100 Rotary positive-displacement compressors HOWDEN GODFREY Ltd 17 Aug 1972 [ 21 May 1971] 16289/71 Heading F1F In a meshing-screw compressor having male and female rotors 12 co-operating with a member 16 that is movable by a piston-and-cylinder device 18 to vary the capacity, a keyway 20 engages with a roller 30 to prevent rotation of the member with the rotors and serves as a reservoir for oil, which is injected between the rotors through passages 26. The roller has a vertical rotation axis and is mounted eccentrically on a screw-threaded plug 28. An oil-supply duct 24 may be formed in the plug and roller instead of the casing 10.
Patent GB-1423831-A (GB)
Title: Razor blades
IPC: B26B21/58
Filed: 1972-04-08
Abstract: 1423831 Razor blades WILKINSON SWORD Ltd 4 April 1973 [8 April 1972 (5)] 16292/72 16293/72 16294/72 16296/72 and 16298/72 Heading B4B A razor blade comprises a single crystal of alumina having a cutting edge thereon. The crystal is secured, e.g. by a resin adhesive to a supporting member, e.g. of plastics or metal which member may be formed with a guard bar adjacent the cutting edge and arranged to be gripped by a handle. The cutting edge may be formed on the crystal chemical methods, e.g. by dissolution or etching or by a combination of chemical and abrasive methods. The final shaping of the cutting edge may be provided by ion bombardment using an ion beam of appropriate shape. The strength of the crystal may be increased by including a concentration of "large ions" in the surface of the crystal adjacent the cutting edge; the ions can be introduced into the surface by coating the surface of the crystal with a suitable compound containing the large ions and then heating the coating. The crystal may be coated with a plastics, e.g. P.T.F.E. to improve the shaving characteristics; in addition, the blade may be coated with a metal, e.g. chromium.
Patent GB-1423109-A (GB)
Title: Braking systems for vehicles
IPC: B60T13/563
Filed: 1974-04-11
Abstract: 1423109 Fluid pressure brakes LABAVIASGE 11 April 1974 [13 April 1973] 16321/74 Heading F2F A vehicle braking system includes friction brakes which can be applied either by application of the driver's foot on the brake pedal 3 which operates the brakes through a vacuum booster including a casing 8 divided into compartments A, B by a diaphragm piston 6, 9 and linkage or by releasing the accelerator pedal 25 which operates the brakes through a separate booster including a casing 18 divided into compartments C, D by a piston 15 the second casing offering a smaller transverse surface than the first and being partly housed within the first casing farthest from the brake pedal. Compartment C is connected permanently to a source 12 of partial vacuum and a three way valve 22, electromagnetically operated and controlled by means of a switch 24 connected with the accelerator pedal 25, enables the compartments C and D to be connected or compartment D to be connected to atmosphere via a pressure reducer 28, so that when the accelerator pedal is released the brakes are progressively applied.