baber/WOPTO huggingface dataset:
Patent GB-844676-A (GB)
Title: Improvements in or relating to catamenial appliances
IPC: A61F13/20
Filed: 1959-02-11
Abstract: In making a tampon, a block of absorbent material is first partially compressed transversely, then fully compressed longitudinally to its desired dimension and finally the transverse compression is completed to its final desired extent. Additionally it may be initially compressed at right angles to the first-mentioned transverse compression to a dimension less than its final desired dimension so that longitudinal compression causes it to expand to its final dimension.  In use, the tampon expands longitudinally and transversely and this assists its sealing action.
Patent GB-126096-A (GB)
Title: Improvements in or relating to Grenades or the like.
Inventor: CRAVEN PERCY ALBERT
IPC: F42C1/02
Filed: 1918-03-19
Abstract: 126,096. Craven, P. A. March 19, 1918. Projectile fuses, grenade or like. Consists of a safety - device whereby, in case of failure to explode the detonator in the normal way, the striker is automatically restored to its original position and there. after prevented from again approaching the detonator. The invention is particularly applicable to percussion fuses, but may be applied also to time fuses. In the fuse shown, the striker 1 has a reduced portion over which is fitted a slidable collar 2 having a V or like groove 3. A spring trigger 8, fixed to the fuse-body, has a hooked end 9 engaging in the groove 3. Over the needle 5 is fitted a washer 4 against which the creep spring 7 abuts. When the striker, together with the parts 2 and 4, are caused by impact to advance towards the detonator, the hook 9 is forced out of the groove 3, and the shoulder 11 of the striker passes beneath it. Should the needle fail to explode the detonator, the movable parts are returned by the spring 7, and, the collar 2 being then slightly separated from the shoulder 11, as shown in Fig. 2, the hook 9 passes into the gap thus formed, and prevents any subsequent movement of the striker. A " rebound " spring 12, which may be stronger than the spring 7, may act upon the rear of the striker, so as to produce forward movement of the striker when impact in any direction occurs.
Patent GB-1294194-A (GB)
Title: Methods and apparatus for removing insulating films from electrical conductor wires
Inventor: MCPHERSON JOHN WEMYSS
IPC: H02G1/12
Filed: 1970-02-02
Abstract: 1294194 Stripping wire GARDNERS TRANSFORMERS Ltd 2 Feb 1970 4848/70 Heading H2C  To remove an insulating enamel type wire coating a conductor is heated in an inert or reducing gas atmosphere to a temperature at which the chemical composition of the insulation breaks down, then cooled in an inert or reducing gas atmosphere to below the temperature at which rapid oxidation occurs. The gas may be nitrogen and the heat may be supplied by a flame directed onto an open ended metal tube containing the conductor in the gas, or by electrical heating using the tube as the load for the secondary winding of a transformer. A curtain of cold gas directed past the open end of the tube cools the conductor as it is withdrawn. Alternatively, the conductor may be heated and cooled by streams of hot and cold nitrogen, using three streams with the hot one in the centre, or two concentric streams with the cold annular stream surrounding the hot one. After treatment the conductor may be wiped clean ready for soldering. The apparatus may be modified to provide a hand held trigger-operated device, the trigger operating both the heating and the gas flow.
Patent GB-1116126-A (GB)
Title: Process for the preparation of a mercapto-thiophosphoric acid ester
Inventor: FAATZ WERNER
IPC: C07F9/165
Filed: 1967-02-01
Abstract: S-methylmercaptoethyl thiophosphoric acid dimethyl ester is obtained (a) by reacting dimethylthiophosphoric acid chloride with sodium nitrophenolate followed by reaction with monothioglycol-S-methyl ether in the presence of a concentrated solution of NaOH at a temperature of up to 30 DEG  C.; or (b) by reacting phosphorus sulphochloride with a substantially equimolar amount of sodium nitrophenolate, reacting the resulting mixture with methanolic sodium hydroxide solution and then further reacting with monothioglycol-S-methyl ether in the presence of a concentrated solution of NaOH at a temperature up to 30 DEG  C.  The sodium hydroxide concentration is suitably 50% and the process can be carried out continuously by successive addition of the reaction components to a circulatory system containing sodium nitrophenolate, e.g. in the form of a slurry in chlorobenzene.
Patent GB-271548-A (GB)
Title: Improvements in and relating to locomotives
IPC: F23K1/00
Filed: 1926-02-20
Abstract: 271,548. Industrial Appliances & Oil & Coal Corporation, Ltd., and Stevenson, E. P. Feb. 20, 1926. Railway locomotives, steam; bunkers.-Comprises a locomotive having a fuel pulverizer and means for feeding the pulverized fuel therefrom to the furnace, wherein means, such as an internal-combustion engine, are provided for driving the fuel pulverizer independently of steam generated in the locomotive boiler. In the construction shown in Fig. 5 the bunker 3 has sloping sides leading to a bottom channel from which the fuel is delivered by means of conveyers to pulverizers 5<b>, 5<c> driven by petrol engines 17<a>, 17<b>. In a modification the pulverizers are driven normally by a steam turbine and independent power unit is used for starting or auxiliary purposes. Specification 109,063, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], is referred to.
Patent GB-397135-A (GB)
Title: An improved method of building up crank shafts and securing propellers and the like to shafts
IPC: F16C3/12
Filed: 1933-02-18
Abstract: 397,135. Crank shafts ; securing wheels, propellers, &c. to shafts. OMNIUM METALLURGIQUE & INDUSTRIEL (MOTEURS CHAISE), 34. Rue Auguste Lancon, Paris. Feb. 18, 1933, No. 5099. Convention date, Feb. 18, 1932. [Class 80 (ii).] Driving pins or dowels 5 are located partly in recesses in the ends of the pin 1 and partly in recesses in the sides of the arms 7, the parts being held together by a bolt 13 and nut 14. In place of the bolt screwed studs 18 integral with the pin may be used, Fig. 4 ; or the pin may have one stud and be integral with one of the arms. A wheel 27 may be secured on the end of a shaft 26, as shown in Fig. 6 ; in the case of a propeller 29, Fig. 7, the hub 30 and a shaft 26 are secured by a hollow bolt 31. Devices are described for disassembling the various combinations. The dowels 5 may be integral with the arms 7 ; or be replaced by balls fitting into hemi-spherical recesses.
Patent GB-820583-A (GB)
Title: Improvements in or relating to aluminium alloys and the production of coloured surfaces thereon
IPC: C25D11/14
Filed: 1957-02-14
Abstract: An aluminium-base alloy which may have a coloured surface imparted to it by anodizing, without recourse to subsequent dyeing, has the following composition in percentages by weight: Cr 0.2 to 0.5; Mn 0 to 0.6; Mg 0 to 1.2; Si and Fe not greater than 0.35 total.  Al and impurities the balance.  The alloy may also contain 0.02 to 0.10% by weight of Ti.  For greater strength, the alloy may be clad on to a base layer of a metal of higher strength, for example a higher strength the aluminium-base alloy. U.S.A. Specification 2,719,781 is referred to.
Patent GB-968151-A (GB)
Title: Method of preparing diacetone alcohol
IPC: C07C45/82
Filed: 1962-02-09
Abstract: Diacetone alcohol is prepared by condensation of acetone by admixing an alkali metal or an almalgam thereof with acetone containing a quantity of water not exceeding 0.5% by weight, dissolving the alkali metal in the acetone at a temperature not greater than 30 DEG C., maintaining the temperature of the reaction mixture at not above 30 DEG C. during the condensation reaction, and thereafter neutralizing the reaction mixture with acid to give the desired diacetone alcohol. The alkali metal is preferably lithium, sodium or potassium. Dissolution of the alkali metal and the condensation are preferably effected at below 10 DEG C. Sulphuric and benzenesulphonic acids are specified neutralizing agents. Examples of the condensation are given.
Patent GB-1023198-A (GB)
Title: Centreless honing device
IPC: B24B5/307
Filed: 1965-02-05
Abstract: 1,023,198. Honing. MICROMATIC HONE CORPORATION. Feb. 5, 1965 [Feb. 14, 1964], No. 5156/65. Heading B3D. A device for honing a surface of revolution of a workpiece comprises at least one rotary drive wheel engageable with a peripheral surface of the workpiece, at least two locating shoes engageable with the peripheral surface at spaced locations on the opposite side of the workpiece from the drive wheel and at least one honing stone engageable with the workpieee between at least two shoes. A device for honing a groove 25 in a high-speed pump shaft 17, which groove forms the inner race of a ball bearing, has two wheels 11 driven by a motor 15. The wheels may be of resin bonded fine grit abrasive. Two pairs of shoes 19 are carried by two arms 22, of a fixed bracket 23. The shoes are of highly polished tungsten carbide or other non-abrasive material and each is formed with an arcuate surface substantially conforming to the surface of the workpiece. The shoes in each pair are circumferentially spaced and the pairs are axially spaced. The motor 15 and wheels 11 are raised by a fluid jack 52 to bring the wheels into contact with the workpiece which is thus held against the shoes and rotated. The axis of rotation of the wheels 11 is adjustable in a horizontal plane so as to urge the workpiece against one or other of fixed end stops 24 of tungsten carbide. A honing stone 33 having a working face complementary to the groove 25 is moved down through a guide 31 into contact with the workpiece, by a fluid jack 27 mounted on a member 51 secured to a shaft 48. The member 51 is oscillated about the shaft 48 by a motor 35 through a connecting rod 41 and bar 47, thus oscillating the honing stone about the centre of its working surface. A modification for a workpiece with two axially spaced grooves has a single drive wheel engageable with the workpiece between the grooves and two honing stones each having a fluid jack to bring it into contact with one of the grooves. Both stones are oscillated. In another modification for honing the yoke or cross pin of a universal joint, two drive wheels engage the spaced axially aligned arms to be honed. Each arm is honed by a stone brought into contact with the arm by a fluid jack, the two jacks being mounted on a head reciprocated by a fluid jack so that the stones traverse the arms.
Patent GB-494642-A (GB)
Title: Improvements relating to variable speed gear of the stepped wheel type for use in measuring apparatus
IPC: G07F15/08
Filed: 1938-02-18
Abstract: <PICT:0494642/IV/1> A variable speed gear for measuring apparatus, more especially prepayment apparatus, comprises a stepped-wheel block or unit made of a unitary piece of synthetic organic plastic material.  In the Figure, the block 1 has stepwise arranged rings of teeth 2, the highest step being shrouded by a flange 3.  To lighten the weight the block is recessed at 4.
Patent GB-875719-A (GB)
Title: Improvements in and relating to catches
Inventor: PARKIN LESLIE
IPC: E05C19/06
Filed: 1959-02-13
Abstract: 875,719. Catch fastenings. CARR FASTENER Co. Ltd. Feb. 12, 1960 [Feb. 13, 1959], No. 5163/59. Class 44. A keeper of a catch for mounting in an apertured support comprises a pair of spaced arms 3, each of the arms having a stop 6 for engagement with one face of the apertured support 2 and at least one of the arms having a resilient projection 7 for snapping through the aperture into engagement with the other face of the support and a second pair of spaced arms 5 located between the first pair of arms, the second pair of arms being resilient and inclined towards one another to define a throat for receiving a co-operating catch member 11 in snapping engagement. As shown the member 11 is a stud having a constriction 13 which is received in the throat.
Patent GB-500319-A (GB)
Title: Improvements in or relating to vehicle wheel spring suspensions
IPC: B62K25/28
Filed: 1938-02-18
Abstract: 500,319. Spring frames for cycles &c. AUTO UNION AKT.-GES. Feb. 18, 1938, No. 5220. Convention date; Feb. 18, 1937. [Class 136 (iii)] In a spring suspension for the rear wheels of motor and other cycles &c., of the type comprising a pivoted fork, the outer end of each arm of which is directly mounted in a slidable manner in a guide member forming a rear connecting-member of the frame on each side of the wheel, each guide member is provided with a longitudinal slot to receive a flattened end on each fork arm, which passes entirely through the slot and is in close sliding engagement with the side walls thereof. Each arm 2 of the pivoted fork is provided with a flattened end 3 which passes through longi. tudinal slots 7 in a tubular guide member 5 secured to the' converging frame members 6 of the cycle. The guide member 5 is partially enclosed in a reinforcing tubular member 9, which is also slotted, the edges of the slot being flanged to enlarge the bearing surfaces engaging the fork end 3. The ends of the guide member 5 are extended beyond the. frame members 6, and are reinforced by webs 9a. The surfaces of the fork end 3 are provided with lubricating-grooves 11 fed from a common lubricating duct 12. An upper compression spring 13 acts on the fork end 3 through a cup-washer 16 and a spherical pivot 15, and its upper end abuts against a screw-threaded stud 21, which is adjustable in a screw cap 18 by means of a hand-actuated key 20. A lower compression spring 14 is interposed between a cup washer 17, fixed to the fork end 3, and a screw cap 19. A cover 23 of bellows form excludes dirt.
Patent GB-399386-A (GB)
Title: Improvements in or relating to a combined electric flash light and cigar or other lighter
IPC: F23Q2/06
Filed: 1933-02-20
Abstract: 399,386. Combined frictional igniter and electric flashlight. UNITED STATES ELECTRIC MANUFACTURING CORPORATION, 222, West 14th Street, New York, U.S.A.-(Assignees of Britsch, 0. C. ; Woodhaven, New York, U.S.A.) Feb. 20, 1933, Nos. 5223 and 5224. Convention dates, Feb. 20,1932, and Nov. 11, 1932. [Classes 39 (ii) and 75 (iii).] Two dry cells 10, 11, fitting in the concave sides of a fuel container 1, are supported and connected in series bv an insulated lever 7 pivoted between the bottom of the container and a baseplate 4, and a lamp bulb 26 is screwed down in a top plate 2 to engage its terminal 27 with the pole 12 of the cell 10 and thereby press the upper end of the cell 11 into contact with an insulating block 43 on an extension 42 of a member 40 carrying the friction-wheel 45. A plate spring 20, Fig. 1, having a curved end 21 engaging in a slot 29 in a cover 28 for retaining the latter in the open and closed positions and assisting its movement, is provided with a keyhole slot engaging the neck of a wick-tube 32 and tongues 23 engaging in openings in the plate 2 and is held in position by the member 40, the extension 42 passing through, and having a notch engaging one edge of, a rectangular opening in the top plate 2. The lamp switch 34 is pivoted at 36 in V-shaped notches in flanges 37<1> at the upper end of the container 1 and is provided with a contact extension 39 for engaging the negative pole of the cell 11. The thumb piece 35 of the switch extends through a recessed slot in the plate 2 and is provided with lateral shoulders 38 co-operating with the bent bifurcated end 22 of the spring 20 extending through the ends of the slot to provide a snap action. The thumb piece normally extends between projections 30 on the cover 28 so that, when the projections are pressed upwardly by the thumb for opening the cover, the thumb piece is pressed inwardly for closing the switch. The flint 47 is pressed by a spring 46 into contact with the friction-wheel 45, which is rotated by the finger for igniting the wick. The plate 2 is provided with a flange 49 for engaging the upper end of an outer casing.
Patent GB-1068975-A (GB)
Title: Improvements in neutron flux detectors
IPC: G01T3/08
Filed: 1966-02-07
Abstract: 1,068,975. Detecting neutrons. ATOMIC ENERGY OF CANADA Ltd. Feb. 7, 1966, No. 5252/66. Addition to 1,023,117. Heading G6P. In a neutron flux measuring device as described in Specification 1,023,117, the emitter electrode consists of cobalt 59 or scandium 45 in which the emission of electrons by radiative capture is effected through internal conversion.
Patent GB-575530-A (GB)
Title: Improvements in or relating to the production of trichlorethylene
IPC: C07C17/25
Filed: 1944-03-22
Abstract: Trichlorethylene is prepared by the pyrolysis of tetrachlorethane, made by the chlorination of acetylene and containing 5 per cent impurities, at a temperature in the range 400-500 DEG  C. Perchlorethyele and dichlorethylene are also formed. The hydrogen chloride evolved is adsorbed in water and the liquid products are water washed and separated by fractionation.  The apparatus for pyrolysis is made of a corrosion resisting, non-catalytic metal such as iron, steel or nickel, or can be made of carbon, porcelain or similar materials.  Cracking is carried out in unpacked coils of tube of small diameter, or in pipes of larger diameter packed with Rashig rings, porcelain or other non-catalytic materials.  In the examples: (1) crude tetrachlorethane from the acetylene chlorinator is vaporized at 170-190 DEG  C., preheated to 350-370 DEG  C. and passed through the reaction chamber maintained at 460-470 DEG  C.  The liquid product, chiefly trichlorethylene, is condensed and the hydrogen chloride absorbed in water; (2) crude tetrachlorethane is vaporized at 200 DEG  C. and passed through a nickel coil maintained at 460 DEG  C. The liquid product is chiefly trichlorethylene, but contains some perchlorethylene and tetrachlorethane.
Patent GB-618509-A (GB)
Title: Improvements in or relating to cast hollow beams for building purposes
IPC: B28B23/22
Filed: 1946-02-20
Abstract: 618,509. Floors; walls; girders. VUILLEMIN, M. Feb. 20, 1946, No. 5353. Convention date, May 12, 1944. [Class 20(iv)] [Also in Group V] A centrifugally cast hollow beam, for use in building floors, walls or partitions, has two opposite, flat, parallel faces a and two other opposite faces having recesses c and transverse longitudinally-spaced ribs b. Tensioned reinforcing wires k are positioned in recesses formed in longitudinal ribs. These ribs need not necessarily lie in the meridian plane. The wires k are tensioned after the concrete has set and are anchored at their ends by metal plates on end faces of the beam. The recesses in which they are positioned may be filled with mortar. The tubular part of the beam may be helically reinforced. When used for walls, the beams are arranged horizontally, and the hollows may be filled with earth or sand to provide heat or sound insulation. Buttresses are provided at regular intervals along each beam, for reresisting transverse stresses set up by reinforcing members t, which hold the beams together when arranged laterally. The buttresses may have interengaging parts on adjacent end faces. The Specification as open to inspection under Sect. 91 describes also modifications in which the intermediate spaces between the beams are filled in with either slabs d, Fig. 3, (Cancelled) or a covering element e carried on an auxiliary support, or with ceramic members f, Fig. 5. (Cancelled). The beams may be polished and may be formed with rabbets for doors or windows. Juxtaposed beams may be used as a pipe for water, domestic refuse, ventilating air or smoke, or as a sewer, or as a casing for electric wires or counterweights of lifts or gates. The beams may be made of metal, asbestos, concrete or plastic material. This subject-matter does not appear in the Specification as accepted.
Patent GB-1245862-A (GB)
Title: A mixture containing pentachlorophenol
IPC: C08K5/32
Filed: 1969-01-31
Abstract: 1,245,862. Fungicides containing pentachlorophenol. BADISCHE ANILIN- & SODA-FABRIK A.G. 31 Jan., 1969 [3 Feb., 1968], No. 5355/69. Heading A5E. [Also in Division C3] A fungicidal composition comprises a mixture of (a) pentachlorophenol or a salt thereof and (b) a salt of an N-nitroso-N-cyclo-alkylhydroxylamine. Salts specified are those of Na, K, Ca, Mg, Cu and cations such as cyclohexylammonium and benzylammonium. The compositions may also comprise a carrier and/or surfactant, and find application in the protection of masonry, wood, leather and textiles, particularly in the manufacture of chipboard, plywood and wood fibre materials where the compositions may be incorporated for example in the wood chip binders.
Patent GB-261961-A (GB)
Title: A method of, and apparatus for, utilising the waste heat from internal combustion engines
IPC: F01N5/00
Filed: 1926-02-25
Abstract: 261,961. Scotts' Shipbuilding & Engineering Co., Ltd., and Nicholson, A. I. Feb. 25,1926. Motor power plant.-The waste heat of an internal-combustion engine is used to generate steam in a generator, which may also be independently heated, and the steam is supplied to an engine which drives an electric generator electrically connected with a main electric generator or an electric motor operatively connected with the internal-combustion engine. In the arrangement shown in Fig. 2 the hot exhaust gases from an internal combustion engine e are lead to the combustion chamber of a vertical fire-tube boiler a which generates steam for a steam turbine b driving an electric generator c. Part of the power of the generator c is used to assist the engine shaft u through an electric motor g which may be geared thereto or directly mounted on the shaft. The boiler may be oil fired in addition and the motor g used to start the engine e. A scavenging or supercharging blower h Fig. 3 may also be driven by the turbine.