baber/WOPTO huggingface dataset:
Patent GB-520097-A (GB)
Title: Improvements in or relating to the manufacture of natural rubber and artificial rubber-like masses
IPC: C08K5/18
Filed: 1938-10-12
Abstract: 520,097. Rubber antioxidants. I. G. FARBENINDUSTRIE AKT.-GES. Oct. 12, 1938, No. 29601. Convention date, Oct. 12, 1937. [Class 70] [Also in Group IV] Compounds of the formula where R is an aryl radicle such as phenyl, tolyl, xylyl, benzyl, anisyl or naphthyl. and R<SP>1</SP> is a carbocyclic polymethylene such as cyclopentyl, cyclohexyl, alkylcyclohexyl, arylcyclohexyl or tetrahydro-naphthyl, are used as antioxidants for natural or synthetic rubber. The compounds are prepared by heating under pressure compounds of the formula R-NH-<#>-NH 2  with compounds of the formula R<SP>1</SP>OH or the corresponding ketone with hydrogen in the presence of a catalyst such as nickel. N - phenyl - N<SP>1</SP> - cycohexyl p-phenylenediamine and the corresponding N-p-tolyl, N-p methoxyphenyl and N - #- naphthyl compounds are described. Tests are given using rubber compounds consisting of (1) smoked sheets, crepe, titanium oxide, zinc oxide, sulphur and diphenyl guanidine and (2) sodium polymerisate of'butadiene, colophony the tar distillation residue known under the Registered Trade Mark " Caoutchol," stearic acid diethylamide, zinc oxide, active carbon, sulphur and benzothiazyl-2-sulphene diethylamide described in Specification 452,044, [Group IV].
Patent GB-157878-A (GB)
Title: Improvements in sleeve-valve mechanism for internal combustion engines
IPC: F01L5/24
Filed: 1920-10-20
Abstract: 157,878. Melton, L. L. Jan. 19, 1920,- [Convention date]. Valves; valve-gear. -- Semicylindrical slide valves 18, 19 for inlet and exhaust ports 27, 28 are packed at their adjacent edges by pieces 44, shown separately in Fig. 5, which extend across the zone of the ports, and are pressed outwardly against the two valves by springs 46. Packing- rings on the cylinder wall above and below the ports enter grooves 47 in the packing-pieces 44. The Specification as open to inspection under Sect. 91 (3) (a) states also that the valves are worked from pairs of cranks A by connecting-rods 39, which are forked to clear the main connecting-rods. This subject-matter does not appear in the Specification as accepted.
Patent GB-744876-A (GB)
Title: Process for extracting the active principles from senna
Inventor: RYAN HERBERT ALAN
IPC: C07H15/244
Filed: 1953-10-27
Abstract: The active principles of senna leaf or pods (with or without seeds) are extracted by an aqueous organic solvent in which they are soluble to which an acid is added.  The acid may be inorganic e.g. hydrochloric, or organic e.g. citric.  Preferred solvents are methanol, ethanol and acetone.  The acid macerate may be neutralised with ammonia, evaporated under reduced pressure to remove the solvent and the concentrate dried by spreading it thinly on plates, trays or drums at atmospheric temperature in a low humidity chamber. Alternatively, undiluted organic solvent and a base may be added to the macerate to precipitate the active principles which may be filtered and dried.  The powder may be incorporated into tablets, pastilles, lozenges or granules.  If desired, the excipient or carrier may be added to the concentrate prior to drying.
Patent GB-946356-A (GB)
Title: Improvements in or relating to decorating cans
Inventor: STUCHBERRY ARTHUR LESLIE
IPC: B44C1/10
Filed: 1961-08-17
Abstract: 946,356. Soldered seamed joints; making cans. METAL BOX CO. Ltd. June 27, 1962 [Aug. 17, 1961], No. 29759/61. Headings B3A and B3J. [Also in Division B2] A method of decorating or protecting the exterior of a can body across and lengthwise of a soldered side seam extending lengthwise of the body comprises, while the can body is moving lengthwise away from the soldering station, applying a stripe of coating material, e.g. a pigmented or unpigmented material, across and lengthwise of the seam by a positively rotatable wheel having a component of movement in the direction of movement of the can body and a peripheral speed not greater than the linear speed of the body and which wheel is located at a position in close proximity to the soldering station so that the region of the can body to which the coating material is applied has a result of the soldering process a temperature not less than 350‹ F. As shown, cans formed at a body making station 6 are moved therefrom by a pusher device (not shown) to transfer means 9, which delivers the cans to conveyer means 10 which conveys the cans through preheating, soldering and coating stations 7 and 8. The conveyer means 10 may be that described in Specification 881,962. The soldering station 7 heats the cans to 700‹ to 750‹ F. The coating is done by wheel 11 rotating in the coating material container 15, the periphery of said wheel 11 being shaped to conform to the shape of the can body portion engaged thereby, and knurled, engraved or cell-like in character to control the quantity of material applied to the side seam. A doctor device 17 co-operates with the wheel 11 to control the quantity of material applied to the side seam of the can.
Patent GB-997517-A (GB)
Title: Improvements in and relating to pumps
IPC: F04B9/04
Filed: 1961-08-17
Abstract: 997,517. Diaphragm pumps. CRAFTNEEDS Inc. Aug. 17, 1961 [Aug. 9, 1961], No. 29763/61. Heading F1A. A diaphragm 121 is secured at its outer periphery to a casing 1 and at its inner periphery to a cam follower sleeve 67 having a pin 69 engaging a helical cam groove 75 in a rotatable shaft 63 so that rotation of the shaft causes reciprocation of the sleeve 67 and diaphragm 121, the chambers formed on each side of the diaphragm having inlet and outlet flap valves. A bellows 110 is connected to the casing and sleeve 67 and seals the actuating mechanism from the pump chambers. The pump may be constructed of corrosion resistant plastic material.
Patent GB-210835-A (GB)
Title: Improvements in or relating to sound-recording apparatus
IPC: G11B19/265
Filed: 1922-11-02
Abstract: 210,835. World Record, Ltd., and Billing, N. Pemberton-. Nov. 2, 1922. Driving; feed motions.-A sound-recording apparatus of the type wherein the turntable 112 is moved transversely beneath the stylus point bv a feed-screw 15 driven by a worm-drive 13, 14 from the turntable spindle 12, has improved friction driving-means for rotating the turntable with a varying angular-velocity to produce a constant linear speed beneath the stylus point. Such means comprise a friction-drive wheel 46 mounted in a frame 43 pivoted at 44 in a fixed bracket 42, the pressure of the wheel 46 against the under surface of the turntable 112 being regulated by a weight 48 adjustably mounted in the other end of the pivoted frame. The drive from the motor is transmitted to the friction wheel by belts and pulleys, of which only the members 450, 45, 47 are shown. Specifications 9981/88, 5889/01. and 198,685 are referred to. Raising, positioning, and lowering soundboxes.-The cutting-stylus and diaphragm are mounted in a sound-box 19 at one end of a tubular arm 21 rotatable about an horizontal axis 26 in hearings 24, 25 in a frame 23. The other end of the arm 21 connects with the sound-receiving horn. The sound-box is raised and lowered by a. lever 37 connected to the box by a chain 36, a toggle-link device 40 actuated by a handle 42 being provided to lock the lever 37 in the box-raised position. The frame 23 is adjustable in three directions mutually at rightangles in slides 28, 31, 34.
Patent GB-1021115-A (GB)
Title: Letter plates
Inventor: HAWKES JOSEPH ALEC
IPC: A47G29/126
Filed: 1963-07-30
Abstract: 1,021,115. Letter plates. FREDERICK GILES & SONS Ltd. July 29, 1964 [July 30, 1963], No. 30097/63. Heading A4T. A letter plate includes a rectangular die cast body 4 with a rectangular aperture closed by a flap 7 of extruded aluminium section including a raised head 7c with a dovetail groove 7d in which are mounted at opposite ends a pair of brackets 8 connected to lugs 6 on body 4 by pivot pins.
Patent GB-1383128-A (GB)
Title: Ion source
IPC: H01J27/10
Filed: 1972-06-27
Abstract: 1383128 Ion sources EUROPEAN ATOMIC ENERGY COMMUNITY 27 June 1972 [29 June 1971] 30115/72 Heading H1D Apparatus for producing an ion beam comprises a tubular hollow cathode 3 through which metal or gas atoms are introduced and a hollow anode through which the ion flux emerges when the apparatus is in operation, a bottle-shaped intermediate electrode 5 which surrounds the cathode and a space upstream thereof in the direction of the anode and is constricted towards the anode, means 6 for producing a magnetic field in the ion beam direction within the intermediate electrode and a focusing system which focuses the ion beam in the region of the anode, the focusing system being constructed as a magnetic lens having two serially disposed annular polepieces 10 and 11 which are situated coaxially relative to the ion beam. The discharge from the cathode 3 to the anode 4 is compressed by the field of the coil 6 to form an axial column 2 which is further compressed in the neck of the electrode 5 by the field of a coil 7. The discharge chamber formed by the electrode 5 is bounded by a disc 8 which may be used as a starting electrode and also serves to protect the insulation 9 between the cathode 3 and electrode 5 from bombardment by stray particles. Electrode parts operating at the highest temperatures are made of tungsten or tantalum, and ducts 13, 14 and 15 for liquid coolant are provided. The cathode 3 may be axially displaceable and may be provided with a mechanical follow-up system to compensate for unavoidable losses of cathode material. An alternative embodiment (Fig. 2, not shown) comprises a plurality of cathodes 3 providing a ribbon-shaped ion beam.
Patent GB-248123-A (GB)
Title: Manufacture of garment patterns
IPC: A41H3/06
Filed: 1924-12-15
Abstract: 248,123. Ellis, G. B., (McCall Co.). Dec. 15,1924. Patterns.-Patterns are made by placing the whole of the indicia and pattern outlines on a transparent sheet and pasting or otherwise fastening tinted pattern shapes thereto for making a printing plate. In one method, cardboard shapes are placed on a transparent sheet of paper and the outlines drawn in opaque ink. The necessary indicia is also added in opaque ink by rubber stamps or otherwise. Pattern shapes are then cut out of another sheet of transparent paper uniformly tinted, preferably by stippling, and the shapes are pasted over the outlines previously drawn. The printing plate is then made from the resulting sheet. The transparent sheet may be replaced by an opaque sheet. The printing plates may be used in an offset web press with a delivery designed to produce accurate stacking of the printed sheets which are cut out by a band-saw guided by an attachment ending in a point spaced from the cutter and enabling the operator to follow the printed outline. Specification 180,372 is referred to.
Patent GB-446010-A (GB)
Title: Improvements in cameras fitted with exposure meters
IPC: G03B7/04
Filed: 1934-10-22
Abstract: 446,010. Light - sensitive cells. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Oct. 22, 1934, No. 30225. Convention date, Oct. 28, 1933. Drawings to Specification. [Class 40 (iii)] [See also Group XX] The shutter of a photographic or kinematograph camera is formed wholly or in part as a rectifier photo-electric cell or such a cell is attached to the shutter. The cell consists of a layer of a semi-conductor, e.g. a selenide, on the surface of the shutter blade and a gauze net or an aluminium ring which may be formed by a spraying operation.
Patent GB-1208352-A (GB)
Title: Preparation of sodium nitrilotriacetate
Inventor: SYKES JAMES AUBREY
IPC: C07C/
Filed: 1968-06-25
Abstract: 1,208,352. Preparation of sodium nitrilotriacetate. W. R. GRACE & CO. 25 June, 1968 [7 Sept., 1967], No. 30228/68. Heading C2C. A process for producing sodium nitrilotriacetate by hydrolysing nitrilotriacetonitrile in hot aqueous sodium hydroxide solution under atmospheric pressure comprises (a) feeding into the reaction zone (i) nitrilotriacetonitrile, (ii) a 15-80% aqueous sodium hydroxide solution and (iii) mother liquor recycled from a previous separating step in proportions providing 0À5- 1-1 parts of nitrilotriacetonitrile and 0À2-5 parts of water per part of sodium hydroxide in the material fed into the reaction zone, (b) heating the mixture in the reaction zone to 75- 130 C., (c) withdrawing from the reaction zone a slurry or suspension of precipitated sodium nitrilotriacetate in a mother liquor consisting essentially of 29-71 parts of water, 5-30 parts of dissolved sodium hydroxide, 2-50 parts of dissolved sodium nitrilotriacetate, and less than 1 part of dissolved ammonia, (d) also withdrawing water vapour and ammonia gas from the reaction zone at a rate such that the ratio of water to total (including dissolved) solids in the reaction zone is maintained between 0À5: 1 and 3 : 1, (e) separating solid sodium nitrilotriacetate from the mother liquor, and (f) recycling to the reaction zone as much of the mother liquor as is required to maintain the specified composition of the contents of the said zone. Nitrilotriacetonitrile in step ( a ) may be fed either in solid form or as 15-95% aq. solution. The above steps are preferably carried out as continuous process.
Patent GB-745488-A (GB)
Title: Process for the production of supplementary feeding stuffs
IPC: A23K10/14
Filed: 1953-11-02
Abstract: Supplementary animal feeding-stuff having an APF active substance complex is prepared by causing enzymes secreted from Vitamin B12-containing micro-organisms to break down an extraneous substrate of animal feeding-stuffs, e.g. yeast, mycelium, bran, or extraction residues of soya and/or ground nut and/or poppy seed, and, after complete enzymic breakdown, heating and drying the mixture.  The substrate may also contain other viable micro-organisms, and enzymes secreted therefrom can break down the Vitamin B12 organisms and thus increase the yield of Vitamin B12.
Patent GB-484671-A (GB)
Title: Improvements in screws and pins
IPC: F16B35/04
Filed: 1936-11-06
Abstract: 484,671. Bolts or pins. ROTTENBURG, H. Nov. 6, 1936, No. 30246. [Class 89 (i)] A bolt or pin having a single eccentrically disposed spigot extension whose outer surface comprises an axial extension of the part of the surface of the bolt proper, is arranged so that the spigot lies, in cross-section, wholly within both the axial projection of the bolt and a circle equal thereto in diameter but substantially offset therefrom. The plain pin 1 has such a spigot extension 2, and its purpose is to facilitate the passage of the pin through two plates 3, 4 when the holes therein are out of alignment. When the pin is threaded as at 5, the extension 7 is similarly threaded, and the under surface is cut at an angle 8 to facilitate the passage of the threaded member into the threaded hole of the second plate which is out of alignment with the first. To facilitate entry, the surfaces may be further bevelled.
Patent GB-721548-A (GB)
Title: Improvements in or relating to ignition systems for reciprocating internal combustion engines
Inventor: BARNES LESLIE
IPC: F02P3/08
Filed: 1951-12-27
Abstract: 721,548. Ignition systems ; sparking plugs. ROLLS-ROYCE, Ltd. Dec. 24, 1952 [Dec. 27, 1951], No. 30256/51. Class 7 (4). In an ignition system of the kind comprising means, such as an ignition coil 1 and contact breaker 2, to generate peaked voltage-impulses, a plurality of low-tension sparking plugs 11, and an engine-driven distributer 7, 8 through which the plugs 11 are connected in turn in timed sequence to the generating means 1, 2, a capacitor 10 is provided for each plug and is charged by the generating means 1, 2, through the distributer and discharged across an auxiliary gap 12, which may be enclosed, to actuate the associated plug 11, the discharge circuit including a leak resistance 14 between the electrodes of each plug, which resistance has a value such that at the instant of breakdown of the gap 12 the potential across the plug is at least one-half of the potential to which the capacitor has been charged. Each capacitor 10, may be comprised by the self capacitance of the lead 9 between the distributer and the gap 12. Each plug, which has a semi-conducting element between the annular electrodes that exhibits a negative temperature-coefficient, is arranged to have either an inherant leak resistance or is provided with the separate resistance 14, having a value of the order of 300,000 ohms. When the ignition system is energized by a magneto instead of the coil system illustrated, the distributer, which is of the "jump spark" type, times the spark so enabling the contact breaker to be eliminated. The leak resistance may be built into the plug.
Patent GB-253000-A (GB)
Title: Improvements in tea harvesting machines
IPC: A01D46/04
Filed: 1925-12-01
Abstract: 253,000. Yates, R., (Yates, R. V.). Dec. 1, 1925. Tea, gathering.-A portable, manually-operated tea harvesting machine comprises a frame A of wood, aluminium or other light metal carrying at one end bearings for a shaft C<1> carrying rotatable blades C adapted to engage an adjustable ledger blade D. The shaft C' is rotated by a crank secured at one end. A tray of canvas or similar material stretched across a frame of aluminium is situated behind the cutters to receive the cut leaves and a detachable cover E, F of wire mesh or similar material may be fitted on the tray. The corner A<*> of the tray may be shaped and padded to fit the hip of the operator. The device may be slung by straps H from the shoulder of the operator or, in the case of large machines, fixed handles may be fitted at the ends to enable two attendants to carry each machine.
Patent GB-505492-A (GB)
Title: Electric wave amplifying systems
IPC: H04B3/08
Filed: 1937-11-05
Abstract: 505,492. Valve amplfying circuits. STANDARD TELEPHONES & CABLES, Ltd. Nov. 5, 1937, No. 30378. Convention date, Dec. 5, 1936. [Class 40 (v)] A wave translating system comprises amplifying and feedback paths, and a balancing impedance and a transformer associating the amplifying and feedback paths with the balancing impedance and the transmission path. The circuit includes two series connected windings of a hydrid coil one of the coils being connected between the amplifying path and the feedback path and the other between the feedback path and the balancing impedance. A third winding on the transformer is in the transmission path. The Figure shows an amplifier with hybrid transformers 45, 47 used in the input and output and two feedback paths 42, 43, the latter including a transformer so that either line L<1> or, line L, or both, may be unbalanced to ground. The feedback paths 42, 43 may be conjugate to one another and to the amplifier and to the input and output circuits. The feedbacks in the two paths may be adjusted one relatively to the other so that the singing tendency produced by one loop is prevented by feedback in the -other loop as described in. U.S.A. Specification 1,994,457. The input and output impedances may be balanced by networks 55, 60 as described in Specification 506,791. The couplings in the amplifier and in the feedback paths may have different cut-off frequencies so that stability may be obtained with increased feedback. A plurality of transformers may be included in the feedback loop one of which may contribute the major portion of the phase shift and gain change. The feedback paths may include a band elimination filter 50 and a transmission control network 51.
Patent GB-982996-A (GB)
Title: Catalytic electric cells
IPC: H01M6/04
Filed: 1961-08-23
Abstract: 982,996. Fuel cells, primary cells. ENGELHARD INDUSTRIES Inc. Aug. 23, 1961 [Aug. 24, 1960], No. 30419/61. Heading H1B. A cathode depolarizer comprising an aromatic hydrocarbon, a nitrogen substituted aromatic hydrocarbon or an acetylinic compound is used in conjunction with a cathode containing a catalyst of Pt, Pd, Rh, Ir, Ru, Os. A carbon cathode is preferably used. A fuel cell comprises a cathode 78 supplied with the depolarizer at 74 and an anode 84 supplied at 80. Electrolyte is circulated through the chamber 72.
Patent GB-1033228-A (GB)
Title: Device for making paper extensible
Inventor: THURMAN CARL BERTIL ANDREAS
IPC: B31F1/16
Filed: 1964-07-17
Abstract: A device for creping or compressing in its own plane a web of paper comprises a hard roll formed with closely spaced substantially circumferential grooves and which co-operates with an endless resilient surface with a shore hardness of at least 50 degrees.  The resilient surface may be a rubber covered roll or an endless flexible belt.  The hard roll which may be of steel is grooved at a spacing of three turns per milimetre.  It is preferably heated and is rotated at a speed 6 to 15% greater than the peripheral speed of the resilient surface.  The formation of slight rust on the surface of the roll may improve the creping action.  The treatment may impart a slight embossing effect to the paper.
Patent GB-1068704-A (GB)
Title: Improvements in and relating to methods of introducing sodium into a discharge vessel
IPC: H01J9/395
Filed: 1965-07-19
Abstract: 1,068,704. Discharge apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 19, 1965 [July 22, 1964], No. 30560/65. Heading H1D. Sodium is introduced into a discharge vessel by placing it, held in a glass or metal holder having at least one exit aperture, in the exhaust tube of the vessel before it is connected with a pump, with a filter for arresting solid particles of sodium compounds positioned in the tube between the sodium and the vessel, and heating the sodium to cause it to pass into the vessel. Sodium held in an open-ended glass tube (4, Fig. 1, not shown) is introduced into the exhaust tube (3), the filter (5) being in the form of a nickel/chromium cylinder, of approximately the same diameter as the exhaust tube, and having one end closed by an apertured transverse wall (7, Figs. 2 and 3, not shown).
Patent GB-618016-A (GB)
Title: Pressure regulator for fabric printing machines
IPC: B41F13/40
Filed: 1946-10-14
Abstract: 618,016. Printing machines. ETABLISSEMENTS SCHAEFFER & CIE. Oct. 14, 1946, No. 30598. Convention date, Sept. 20. [Class 100 (ii)] The printing rollers 1 of a fabric printing machine are mounted so that each bearing of a roller is adjustable independently, and a pressure indicator enables each end of the roller to bear with equal pressure on the fabric. Each journal 2 is mounted in roller bearings 3 carried by a support 4 mounted in a sheath 5 adjustable by screw means 6 in a slider 7 mounted in a guide in the machine frame 8, and moving with a slide 9 which is connected to a screw 10 rotatable freely in the slide and engaged by a non-rotatable nut 11 acted upon by a spring device 13 formed of Bellevue washers which bear on dogs 14 secured to a sliding sleeve 15 which bears on a piston 16 bearing against an oil cushion 21 in a cylinder connected by screws 19 to the frame 8 and comprising a fixed abutment 20 through which passes the screw 10. A pressure gauge 24 indicates the pressure applied to the bearings of the roller 1 when the screw 11 is rotated to move the slide 9 and associated parts to bring the roller 1 to printing position. An auxiliary piston 27 adjustable by a screw 28 enables the pressure to be adjusted accurately so as to be the same for each bearing of a roller. In a modification, the screw 10 and nut 11 are dispensed with, and the fluid pressure which is transmitted through the springs 13 to the slide 9 is obtained directly from a piston in a cylinder, the pressure in which is controlled by an adjustable plunger attached to a screw which passes through a threaded aperture in the cap 20. In each case the pressure cylinder can be provided with an automatic filling valve to allow for leakage. A pressure-regulator as described can be fitted to the framework of existing machines.