baber/WOPTO huggingface dataset:
Patent GB-423168-A (GB)
Title: Improvements in the manufacture of treatment of artificial filaments, threads, yarns, ribbons and like materials
IPC: D06M13/224
Filed: 1933-06-23
Abstract: A process for improving the tensile and other properties of filaments, threads, ribbons and like materials of cellulose acetate or like filament forming bases comprises softening the materials by a bath treatment with a mixture consisting substantially of two or more volatile liquids of different solvent powers for the filament forming base, but of substantially the same volatility at the operating temperature, and stretching the materials in the bath.  Examples of suitable mixtures for use at temperatures between about 25 DEG  C. and 35 DEG  C., are methyl ethyl ketone or ethyl acetate with benzene or cyclohexane.  Small proportions of liquids of different volatility from the major portion of the mixture, e.g. 2--10 per cent of alcohol may be added to the mixture.  The softening and stretching operation may be carried out according to the method of Specification 323,790, [Class 2 (ii)], and the materials may be treated in warp formation, e.g. in apparatus of the type described in Specification 371,461. The material may undergo a pretreatment as described in Specification 392,185, such pretreating agent preferably comprising liquids of substantially the same volatility, and before any other treatment the materials may be treated to remove or reduce the amount of water or other non-solvent liquid they contain.  In an example, cellulose acetate artificial silk is drawn as a warp from a creel through a bath containing a 90--95 per cent mixture of ethyl acetate with benzene, by means of two sets of rollers so spaced and driven that each portion of the material is in contact with the bath for approximately two minutes, and so that the material is stretched to approximately 200 per cent of its original length.  The bath temperature is 25--35 DEG  C.  The same process may be operated with baths containing 88 per cent ethyl acetate, 2 per cent alcohol, and 10 per cent benzene to stretch the material to 250 per cent of its original length, or containing 90 per cent ethyl acetate, 5 per cent of alcohol and 5 per cent cyclohexane, or with a 60--70 per cent mixture of methyl ethyl ketone with benzene, or with a 65--75 per cent mixture of methyl ethyl ketone with cyclohexane. The stretching may be effected in two or more stages, if desired with periods of travel at uniform speed as described in Specification 370,430. Specifications 277,089, [Class 2 (ii)], and 394,016 also are referred to.
Patent GB-484260-A (GB)
Title: Improvements in or relating to drawing rollers for spinning machinery
IPC: D01H5/74
Filed: 1937-06-28
Abstract: 484,260. Rollers. LAIRD, T. H. June 28, 1937, No. 17985. [Class 42 (ii)] [Also in Group IX] Drawing-rollers for spinning-machinery comprises a hub 1 mounted on a shaft and secured thereon by screws or the like, and a disc 5 of fibre or the like secured on a seating against a collar 2 of the hub by screws 6 or like means. A double roller is shown, the collars 2 being integral, if desired, as shown in dotted lines.
Patent GB-737923-A (GB)
Title: Improvements in or relating to electric converter arrangements
IPC: H01J13/56
Filed: 1952-07-16
Abstract: 737,923. Metal-vapour converters. GENERAL ELECTRIC CO., Ltd., and GALLIZIA, E. June 29, 1953 [July 16, 1952], No. 18006/52. Class 39 (1). An electric converter comprising bi-phase vapour electric arc rectifying means arranged to rectify a single-phase A.C. supply has the rectifying means comprising a single cylindrical vessel 1 having a cathode 3 and only four main anodes, each mounted in an external side arm 2, the arms 2 being disposed generally at the four corners of a rectangle and being so arranged in two pairs that each pair is contained within or substantially within parallel planes spaced apart by a distance equal to the diameter of the vessel 1. Auxiliary anodes are mounted in arms 4 placed between the side arms 2 of those pairs forming the shorter sides of the rectangle. An air-cooling fan as described in Specification 737,922 is arranged laterally of one of the shorter sides of the rectangle formed by the side arms 2 and is connected to the vessel 1 by suitable ducting 5 and 6 for the flow of air.
Patent GB-905715-A (GB)
Title: Improvements in or relating to position control apparatus
Inventor: GREEN JOHN IVOR TENNANT
IPC: B21J13/10
Filed: 1959-05-27
Abstract: 905,715. Forging manipulators. BRITISH IRON & STEEL RESEARCH ASSOCIATION. May 27, 1960 [May 27, 1959], No. 18046/59. Class 83 (4). A rotary member, particularly the peel 14 of a forging manipulator, is indexed to an approximate angular position by remote control and finally located accurately in the desired position. A manipulator of the kind described in Specification 874,909 has its peel 14 rotated by an hydraulic motor controlled as described in Specification 892,216. The peel carries a pair of circular plates 12 with peripheral notches 15 engageable by rollers 16 on a carriage 17 actuated by a double-acting hydraulic ram 19. These rollers thus locate the peel accurately in its selected angular position. Ram 19 is controlled by a solenoid valve whose circuit is interlocked with the control circuit of the peel rotating motor so that the rollers 16 engage only after rotation ceases. Excessive torsional forces on the peel which may occur during forging cause the rollers 16 to yield and subsequently re-engage. The position of the peel gripping jaws is adjustable on the peel and the position of the rollers 16 may be adjusted relatively to the peel.
Patent GB-606514-A (GB)
Title: Agricultural tractor
IPC: B62D49/06
Filed: 1945-07-16
Abstract: 606,514. Agricultural tractors. CHARRUES MELOTTE, SOC. ANON. July 16, 1945, Nos. 18117 and 18118. Convention dates, March 29, 1939, and May 24, 1939. [Class 79 (i)] An agricultural tractor comprises an engine, gear-box and a differential, the differential case having around its periphery a channel in which is rotatably mounted a collar connected to the draw-bar, thus permitting relative rotation between the tractor and draw-bar of 360 degrees. Fig. 1 shows a tractor with engine 1, gear-box 2 surmounting the differential and axle casing 12. Power from the gear-box is transmitted from a shaft 5 by gears 6 to a shaft 7 carrying a worm 8, which meshes with the crown wheel 9 of its differential. The casing 12 is provided with a flange 16 and a circular angular member 15 together forming a channel in which is rotatably mounted a collar 17, an extension 18, 19 of which forms the draw-bar. The collar may run to ball-bearings. The bar may serve to tow a seed distributor or other implements, as shown in Fig. 4, or be attached to a small castor wheel 28 as shown in Fig. 5. In the former case the sleeve 20 of the towed implement is free to rotate about the bar 19 to allow for uneveness of ground, but when a castor wheel is fitted as in Fig. 5, the sleeve 27 is clamped by a bolt 31. Fig. 6 shows a modification in which the channel housing the collar 45 slopes inwardly so that the lubrication oil does not tend to leak out. The collar may be chamfered to allow for a small oil reservoir 48. The channel may be formed integral with the differential casing instead of using a flange and a circular angular member in which case the collar is built up from a number of segments held together by a circular band.
Patent GB-933204-A (GB)
Title: Sliding plate gate valves
IPC: F16K39/04
Filed: 1961-05-18
Abstract: 933,204. Valves. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 18, 1961 [May 20, 1960], No. 18185/61. Class 135. A sliding plate gate valve comprises a gate member 9 in which at least two grooves 12 are provided in the low-pressure side face of the plate and extend in the direction of movement of the gate, these grooves communicating over a part of the stroke of the gate with apertures 13 in the seat to which a pressure medium can be supplied. The grooves are formed in side-wings which bear on support arms 8 formed on the seat member 7. In operation, upon opening or closing of the gate, a pressurized fluid is fed through a pipe 14 into the grooves via the apertures 13, thereby reducing the effort required to actuate the valve. The valve for controlling the supply of pressurized fluid may be actuated by movement of the gate valve stem 3.
Patent GB-292613-A (GB)
Title: Improvements in silencers
IPC: F01N1/14
Filed: 1928-06-22
Abstract: 292,613. Elite-Diamantwerke Akt. Ges. June 23, 1927, [Convention date]. Exhaust silencers. - The perforated end c of the exhaust pipe a discharges the gases into a chamber b into which project tubes d with inlet slots e. Each of these tubes, which is cooled by the atmosphere, extends at its other end into a chamber f into which project a group of smaller tubes g, for example three to each chamber, the ends being slotted at h. The other ends project, and discharge the gases into a common chamber i terminating in a nozzle k within the exhaust outlet. The ejector action of the exhaust at the nozzle k is utilized to draw air through ducts m which traverse the chamber i. The aggregate area of cross-section of each set of tubes g is greater than that of the corresponding tube d.
Patent GB-111368-A (GB)
Title: Process for Rendering Impermeable Textile Fabrics and Porous Materials.
Inventor: PATERAS-PESCARA GUSTAVO
IPC: D06M13/224
Filed: 1916-12-20
Abstract: 111,368. Pescara, G. Pateras-. Dec. 20, 1916. Coating-compositions. -Talc is mixed with a hot drying oil with the optional addition of lamp black or other colouring matter. When cold the mixture may be applied to fabrics.
Patent GB-1313485-A (GB)
Title: Process for the preparation of a mixture of n-octyltin chlorides   which is entirely free from tri-n-octyltin chloride
IPC: C07F7/22
Filed: 1971-06-01
Abstract: 1313485 Preparing di- and mono-n-octyltin chlorides INSTYTUT PRZEMYSLU ORGANICZNEGO 1 June 1971 [6 June 1970] 18326/71 Heading C2J A mixture of di- and mono-n-octyltin chlorides which is entirely free from tri-noctyltin chloride is prepared by directly reacting tin and n-octyl chloride in the presence of, as catalyst, 0À03-0À08 mol of PCl 3  per g-atom of tin and simultaneously distilling off the α-octene formed. The reaction is normally effected at 175-200‹ C. in the presence of a small amount of n-octyl iodide and using excess n-octyl chloride as solvent. In Example 1, the n-octyltin trichloride is distilled off from the reaction product and saponified in aqueous NaOH to give n-octyl tin acid, the remaining di-n-octyltin dichloride being hydrolysed in aqueous alcoholic NaOH to yield di-n-octyltin oxide.
Patent GB-278820-A (GB)
Title: Improvements in or relating to formers for supporting electric coils
IPC: H01F5/02
Filed: 1926-07-22
Abstract: 278,820. igranic Electric Co., Ltd., and Holbeach, W. M. July 22, 1926. Electromagnets. - The coil is wound on a hub 2 arranged between flanking discs 1 of flexible or resilient material, the discs being held towards one another by a cord held backwards and forwards in slots 1<a> in the edges of the discs. Holes 1<b> are provided in the disc to reduce the capacity of the coils. The discs and hub may be made of celluloid and may be clamped together by a copper ring 3 of channel section and broken at one point. In Fig. 3, the hub 2 is formed by the inner edges of the discs, these being stuck to the ring 3. Other forms are shown in Figs. 4 and 5. In Fig. 6, several discs 1 are spaced apart by ebonite spacers 4 arranged in coaxial groups and forming a hub. Rivets 4a pass through the discs and spacers.
Patent GB-1354776-A (GB)
Title: Junction transistor
IPC: H01L29/00
Filed: 1971-06-01
Abstract: 1354776 Semi-conductor devices LICENTIA PATENT-VERWALTUNGS-GmbH 1 June 1971 [13 June 1970] 18392/71 Heading H1K A junction transistor, e.g. for power switching comprises a N-type collector layer 1 covered by a P-type base layer 2 and a N-type emitter layer 3; the base being provided with strip contacts 4 covered with insulant 5 of, e.g. vapour deposited Al 2 O 3  and the emitter having mesa form; the strips of which are provided over their entire current conducting surfaces with a nonrectifying electrode layer 6 contacted by a pick-up electrode, e.g. a pressure contact 7 extending on all sides beyond the emitter contact surface (Fig. 2). In fabrication, a semi-conductor body with superimposed alternate N, P +, N + zones is formed with etch resistant contact strips to serve as masks, and the exposed emitter zone is etched down to base by, e.g. HF + HNO 3  leaving an emitter strip mesa formation. The base is provided with strip contacts and the underlying collector with a face contact. The contacts may be of Au or Cr (Figs. 3a, 3b, not shown).
Patent GB-955762-A (GB)
Title: Hydroxystreptomycins
Filed: 1962-05-14
Abstract: Hydroxy streptomycin and its mannosido derivative are prepared by fermenting a strain of the micro-organism Nocardia apis n.s.p or a mutant thereof which will produce hydroxy streptomycin and its mannosido derivative under aerobic conditions in a sterilised liquid nutritional medium containing assimilable sources of carbon, nitrogen and mineral salts at from 25-37 DEG C. for 2-5 days at a p.H which at the beginning of the process is 6.8 to 7.2 and at the end is 7.5 to 8. The hydroxy streptomycin and its mannosido derivative are extracted from the filtered fermentation broth by absorbtion on and elution as their acid addition salts with aqueous acid from a cation exchange resin. The hydroxy streptomycin is separated from its mannosido derivative by chromatography of their acid addition salts over an absorbent substance, e.g. carbon, alumina or silica with elution with water. The acid addition salts of the mannosido derivative may be prepared by reacting the free base with the appropriate anion in the form of an acid or salt. Specified salts of mannosido hydroxy streptomycin are the sulphate, hydrochloride and b -naphthalene sulphonate.
Patent GB-152153-A (GB)
Title: Atmospheric discharge and disturbing element "eliminator," for wireless telegraphy
IPC: H03H9/48
Filed: 1919-07-24
Abstract: 152,153. Brantom, A. H., Bitton, E. A., Dransfield, A. W., and Boyce, S. E. July 24, 1919. Telephonic, telegraphic, and other non-contactmaking relays.-The armature of a tuned relay consists of a plurality of eccentrically mounted and spaced disks or a number of spaced plates or strips having the same natural frequency. The armature 4, Figs. 1 and 2, consists of a number of spaced disks eccentrically mounted upon a spindle 5. One of the Provisional Specifications states that the upper disk may operate the microphonic element of a magneto-microphonic relay. In the modification shown in Fig. 4, the electromagnet is adjustably mounted upon a lever 13.
Patent GB-1414684-A (GB)
Title: Gas burner suitable for burning fuel gas and for burning  reaction gas mixtures in reactors and furnaces
IPC: F23D14/78
Filed: 1973-04-17
Abstract: 1414684 Acetylene and synthesis gas production V F POPOV 17 April 1973 18418/73 Heading C5E [Also in Division F4] Acetylene and synthesis gas is obtained by supplying oxygen via means 5 to a chamber 4 defined between two hollow grids 1, 2 cooled by coolant circulating therethrough tube 8 extending through grids 1 and 2 to supply a mixture of hydrocarbons, e.g. natural gas, from an inlet zone 15 to a combustion zone 16, and slots 17 on the outer face of tubes 8 for supplying the oxygen from chamber 4 to zone 16, one end of each tube 8 being hermetically secured in a respective channel 7 of that grid 2 adjacent zone 15 and the other end of each tube 8 being located in a respective channel 6 of the other grid 1 with a sliding fit allowing axial movement of the tube 8 relative to grid 1 and heat transfer thereto from tubes 8. Slots 17 may be longitudinal or helical. Part of the hydrocarbons burn in zone 16 until the available oxygen is expended and the remaining part disintegrates to give acetylene and synthesis gas. Combustion is stabilized by supplying an ozone/oxygen mixture via slots 17.
Patent GB-1404514-A (GB)
Title: Electronic timepieces
IPC: G04G5/00
Filed: 1973-04-17
Abstract: 1404514 Electronic timepieces SUWA SEIKOSHA K K 17 April 1973 [17 April 1972] 18462/73 Heading G3T A wholly electronic timepiece with liquid crystal or light-emitting diode display is provided with a setting and correcting arrangement including a selector switch SS, Fig. 2, for selection of the portion of the display to be corrected, a correcting switch SA which when operated causes a correcting pulse signal to be applied by a control circuit 12 to correct the selected display part, and means to indicate the display part selected. This means comprises visibly flickering the affected display portion by means of a relatively low frequency signal (e.g. 20HZ or less) derived at terminal F of a frequency divider chain I of the timepiece. The time display elements LW, LD, LH, LM, LS are normally driven by signals from outputs DEC of respective decoders 11 to 7 through NAND gates controlled by outputs from terminals Wb, Db, Hb, Mb, Sb of the control unit 12, detailled in Fig. 3 (not shown) to display the date, day, hours, minutes and seconds respectively. To correct the minutes indication for example, the selector switch SS, switch SA also a safety switch SL are simultaneously operated, so that a correcting pulse signal is supplied from output terminal Ma of unit 12 to the adjusting signal input ADJ of the minutes divider 3. The minutes display is thereby caused to increase by one unit each time switch SA is depressed by the user. The safety switch SL is provided to prevent accidental operation of the correction circuits, being switched to its blocking state for normal running by pushing in a crown and vice-versa when it is desired to correct the time displayed.
Patent GB-125032-A (GB)
Title: Improvements relating to Cipher Apparatus.
Inventor: NICOLETTI LUIGI
IPC: G09C1/04
Filed: 1918-11-12
Abstract: 125,032. Nicoletti, L. Nov. 12, 1918. Ciphers.-A cipher apparatus comprises bars e sliding in a frame and provided with numerals 0 to 9 placed side by side and repeated in the same order on each bar. The transverse member c of the frame is made with a slot c<1> through which a column of numerals may be seen. The bars are moved until the numerals in the column are according to an agreed numerical key. In the construction shown in Fig. 2, the numerals then presented within the frame members a, b, c, d form a table by which the cipher can be formed by transposition of letters, according to any prearranged rule. In the construction shown in Fig. 6, exposed spaces g on a card placed behind the frame are filled in with the letters of the message. The cipher is then formed by writing the letters in line as they appear consequently in the vertical columns. The correspondent can, by setting his apparatus to the key and by reversing the process of re-arrangement of the letters, translate the code message into the original message. The bars e may engage each other by tongues h and grooves i, and may be provided with recesses l in register with each numeral so as to engage projections m on the member c of the frame and lock the bars in the set position. Each bar may be provided at the end with a differentiating character such as a Roman numeral.
Patent GB-297531-A (GB)
Title: Improvements in or relating to transformers
IPC: H01F19/02
Filed: 1927-07-12
Abstract: 297,531. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). July 12, 1927. Drawings to Specification. Transformers.-In order to obtain substantially uniform amplification of currents of audiofrequencies over a given range avoiding a resonance peak, the transformer employed has at least one of its windings made of wire of magnetic material, e.g. nickel, in which the resistance increases at the higher frequency values. The results are graphically illustrated in comparison with the results obtained by using resistance wire such as nichrome.
Patent GB-455806-A (GB)
Title: Process for making permanent magnets
IPC: H01F1/08
Filed: 1935-06-28
Abstract: 455,806. Magnets. BAERMANN, M., 30, Deutscher Ring, and DYNAMIT AKT.- GES. VORM. A. NOBEL & CO., Troisdorf Bez, both in Cologne, Germany. June 28, 1935, Nos. 18598 and 18599. Convention dates, July 11, 1934 and Aug. 11, 1934. [Class 35] A permanent magnet is made by reducing ferromagnetic material of high coercive force to powder, mixing or soaking it with a binding medium, forming it into a solid by casting, pressing or other hot or cold treatment and finally magnetizing it. A suitable magnetic material is a nickel-aluminium-steel alloy having a coercive force higher than 240 Oerstedt, and as a binding material, natural or artificial resins or a nonmagnetic metal of low melting point may be used. The magnet may be protected by a sleeve of nonmagnetic material. A magnetic field may be applied during the pressing operation. Polepieces of high permeability material may be built into the magnet and secured thereto by extensions of nonmagnetic material projecting into the magnet. The pressing or casting operation, the heating of the mould and the insertion of the polepieces may be effected in a single operation. The mixture may be introduced into a hollow nonmagnetic body bounded by two steel plungers, one of which is fixed and the other movable and magnetized from an external source through the steel plungers or by means of a winding placed either on the hollow body or on a piece of soft iron bridging the plungers. The magnetic material is formed by reducing larger pieces to powder so that grains of all sizes from 0À01 mm. to 1 mm. are present. If the powder is sufficiently fine and high pressure is employed, a separate binding medium may be dispensed with.
Patent GB-886817-A (GB)
Title: Improvements in or relating to a draft and buff arrangement for railway vehicles
IPC: B61G7/06
Filed: 1959-06-01
Abstract: 886,817. Combined buffer and draw gears. NATIONAL MALLEABLE & STEEL CASTING CO. June 1, 1959 [June 2, 1958]. No. 18681/59. Class 103(5). A combined buffing and draw gear for mine wagons, Figs. 1, 2, comprises a head 52 on a shank 54 providing a concave spherically curved surface 53, a front follower casting 34, Fig. 7, having a forwardly facing convex spherical surface 55 engageable on buff but not on draft with the concave surface 53, follower members 68, 70 with a cushioning unit 72 therebetween, and a bolt 74 extending through the unit 72 and connecting via a pin 76 with the bifurcated end of the shank 54 to transmit draft forces. Rear stops 22 and forward stops 24, 26 are provided, and retainer members 48 are inserted between lugs 44 on the front follower casting 34 and the stops 24, 26. A centering arrangement (see Specification 623,103) is provided by a spring pressed plunger 58 which receives the forward end of the bolt 74 in an arcuate shaped portion 58b and has a bifurcated end 58a which provides ends 58c bearing against the butt seat 64 without interference from the pin 76. In operation and upon the application of a buffing force the surfaces 53, 55 will engage and the butt end 62 of the shank 54 will contact surface 64a on' a seat 64 and take up clearance 66, the pin 76 being unstressed as it is accommodated in a hole 78 elongated forwardly at 98 in the shank. The buffing forces are therefore transmitted partly through the casting 34 and its lugs 44 to the follower 68 and unit 72, and partly through the shank 54 and seat 64. Under buffing load the frictional force between the engaged surfaces 53, 55 prevents angling of the coupler and therefore limits the derailing moment exerted on the cars. Draft forces are transmitted through the bolt 74 to move the follower 70 forwardly to compress the unit 72 against the follower 68 which abuts the lugs 44 and stops 24, 26, and the surfaces 53, 55 are pulled apart so that the coupler may angle freely. In a modification, Fig. 5 (not shown), the shank 54 is nearly circular in section and sufficient clearance in the casting 34 is provided to allow the cars to be side tipped without uncoupling.