baber/WOPTO huggingface dataset:
Patent GB-413848-A (GB)
Title: Improvements in or relating to loudspeakers and the like
IPC: H04R7/20
Filed: 1933-05-18
Abstract: 413,848. Diaphragms. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and OLIVER, D. A., c/o General Electric Co., Wembley, Middlesex. May 18, 1933, Nos. 14402 and 25784. [Class 40 (iv).] The diaphragm of a loud-speaker, microphone, or the like has a corrugation at its outer edge and is supported by means of a ring of soft flexible material other than the material of the diaphragm attached to the outside rim of the corrugation. The ring, which may be of textile material or rubber, is preferably held under a uniform tension by securing a rigid cardboard or thin fibre annulus of the form shown in Fig. 1 to a stretched sheet of the material, the material inside the ring 2 and outside the ring 1 being then cut away. The combined annulus is then attached to the cone 4 outside the corrugation 7 and to the frame 5 as shown in Fig. 2, the part 3 connecting the rings 1 and 2 of the rigid annulus being either left in place or some or all of them cut away. British Specification 188,709, [Class 40 (iv)], and U.S.A. Specification 1,891,566 are referred to.
Patent GB-234855-A (GB)
Title: Improvements in memorandum appliances
IPC: B42D19/00
Filed: 1925-06-02
Abstract: 234,855. Winklhofer, F., and Winklhofer, F. June 2, 1924, [Convention date]. Memorandum appliances. - A movable-strip writing-appliance consists of a closed casing provided with a hinged lid A having a transparent window B of celluloid or the like, upon which pressure is applied by a writing-point to produce impressions on the undersurface of a band R of transparent paper superposed on an inking-band over a writing-plate M within the casing. The band of transparent paper is traversed longitudinally between two rollers W rotated by external knobs C. The inking-band is carried by rollers L accessible when the hinged lid is opened and is traversed at right angles to the band R. The rollers L and writing-plate M are carried by a frame hinged along one edge to the bottom of the casing. The edges of the plate M are thickened to prevent the band R from coming into contact with the inking-band during movement.
Patent GB-775400-A (GB)
Title: A method and apparatus for producing copper-plated steel tubes
IPC: C25D7/04
Filed: 1955-05-19
Abstract: 775,400. Making cased tubes; drawing. BENTELER - WERKE AKT. - GES. WERK NEUHAUS. May 19, 1955 [May 19, 1954; April 9, 1955], No. 14498/55. Drawings to Specification. Classes 83 (2) and 83 (4). [Also in Group XXXVI] In a method of making small diameter steel tubes provided with internal and external coatings of copper or copper alloys, a large diameter steel tube has electrodeposited layers of copper applied while held in the vertical position with a copper wire anode running through the centre, the tube and anode being connected at both ends to sources of electric current and electrolyte being passed continuously through the tube. The plated tube is finally annealed in the absence of oxygen at a temperature just below the melting-point of copper and the tube is cold drawn to the required dimensions.
Patent GB-956248-A (GB)
Title: Information record
Inventor: MAURER JOHN ANDREW
IPC: G11B5/80
Filed: 1961-04-21
Abstract: 956,248. Information records. KALART CO. Inc. July 20, 1962 [April 21, 1961], No. 14501/61. Heading G2C. [Also in Division G5] An information record comprises a carrier having a picture area and an associated record track area comprising a plurality of rectilinear and separate parallel track sections disposed side by side one end of each section forming a continuation of the opposite end of an adjacent section, whereby scanning of the track sections in sequential order produces a continuous reproduction of the recorded message. As shown in Fig. 1 a film may be provided with areas of picture and sound recording A, B, C &c. and A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP> &c. respectively arranged alternatively. A sound recording area need not be next to its respective picture area and, if desired, the sound areas and picture areas may be arranged in two parallel tracks. Each sound area comprises a series of parallel tracks which may be inclined to the longitudinal edge of the film. These tracks may be of the variable area or variable density type and may be formed by known photographic printing or magnetic methods. When they are of a variable density type they are reduced in width at each end so that the sum of the width at the end of one track and the beginning of the next is equal to the normal width of a track. Similarly if the tracks are of the variable area type the fade out and fade in portions may be formed by variable density areas at the end of each track. Reference has been directed by the Comptroller to Specification 922,722.
Patent GB-1079606-A (GB)
Title: Improvements in and relating to compressor or turbine rotor blades
IPC: F01D5/14
Filed: 1966-04-01
Abstract: 1,079,606. Turbine and compressor blades; axial-flow compressors. BROWN, BOVERI & CO. Ltd. April 1, 1966 [April 1, 1965], No. 14519/66. Headings F1C and F1T. Each blade in a row of rotor blades in an axialflow compressor or steam turbine wherein the fluid velocity at the blade tips is supersonic has a tip cross-sectional shape in which the pressure side D is straight or slightly convex, the suction side Sa is concave with a smaller radius of curvature than the pressure side, and the greatest section thickness d, is adjacent the leading edge E.. The trailing edge H has a thickness d 2  of approximately 2 to 4% of the chord length L. The blades are spaced so that a straight line N from the trailing edge of one blade and intersecting the greatest section thickness of the adjacent blade subtends an angle y of 90‹ with the profile chord Se of the adjacent blade. An erosion resistant coating may be applied to the leading edge E.
Patent GB-771944-A (GB)
Title: Sheet feeding apparatus
IPC: B65H1/18
Filed: 1955-05-20
Abstract: 771,944. Feeding sheets. DEXTER FOLDER CO. May 20, 1955 [Aug. 27, 1954]. No. 14562/55. Class 100(1) In a sheet feeding apparatus, means for raising the pile 21 of sheets to feeding position includes a lever 71 pivoted at 72, a feeler element 52 carried by the lever and engaged with the top of the pile, a rod 84 pivoted at 83 to the lever and carrying a roller 88 adapted to engage a cam surface on a pivoted cam bar 90 when the pile height is lower than a predetermined amount, and means responsive to pivotal movement of the cam bar 90 for actuating pile raising mechanism. As described, the feeler element 52 is the usual foot clamp which rests on the pile while the top sheet is being separated by suction separators, and it may also comprise a pipe for blowing compressed air beneath the top sheet. The lever 71 is oscillated by a cam 66, and the feeler 52 is clamped to a cam link 72 pivoted to the lever at 75. A roller on a fixed pin 77 engages in a closed cam slot in the link 72, whereby the feeler 52 is rocked outwardly and forwardly as it is raised and lowered. When the pile height is lowered due to the removal of sheets, the roller 88 on the rod 84 engages a cam face 91 on the bar 90, and swings the bar about its pivot 93 to engage a plunger 105 which closes a microswitch 116 to cause a solenoid to be energized. When this occurs, the solenoid rocks a latch to release a frame carrying a pawl which can then be actuated by a cam to operate through a ratchet-wheel and gearing to raise the pile table. The cam bar 90 is pivoted to a bellcrank lever 94, 96 which can be adjusted, whilst the apparatus is operating, by a screw and nut means 101, 103, whereby the height of the pile may be varied to suit different sheets; where the sheets are thick, adjustment is made so that the cam surface 91 is engaged continuously by the roller 88 and the pile raising mechanism will then operate continuously. The plunger 105 and switch 116 are carried on a bracket 107 pivoted to the frame at 108, and a cover plate 109 secured to the bracket normally rests on a frame side plate. The bracket can, however, be swung to the dotted line position, against the action of a spring 111, where the switch 116 cannot be engaged by the cam bar 90, by the transverse manual movement of a cam 128 beneath a roller 130 carried by the bracket. This allows the pile table to be lowered to receive a new pile, but it can be used to discontinue, temporarily, the control mechanism whilst the sheet separating means is still operating. The mechanism may control the advance of a pile in a continuous feed mechanism, and hydraulic raising means may replace the pawl and ratchet means. Further, the mechanism may be used to control the 'downward movement of a delivery pile as sheets are delivered thereto. Specificatian 593,247 is referred to.
Patent GB-769767-A (GB)
Title: Improvements in or relating to steroid compounds and the preparation thereof
IPC: C07J5/00
Filed: 1955-05-20
Abstract: The invention comprises 21-substituted polycarboxylic acid esters of hydrocortisone, the metal salts thereof and the salts thereof with ethylene diamine derivatives having the structure R1(CH2)xNHCH2CH2NH(CH2)y R2 wherein R1 and R2 are aryl groups and x and y are 1, 2 or 3, and a process for the preparation of a hydrocortisone acid ester or salt thereof which comprises contacting hydrocortisone with a polycarboxylic acid acylating agent such as an acid anhydride, acid halide or the acid itself and if desired, converting the 21-substituted acid ester of hydrocortisone thus produced, to a salt.  As esterification agents there may be used maleic anhydride, glutaric anhydride, phthalic anhydride, phthaloyl chloride, maleic acid, trimethyl citrate, tartaric acid, succinic anhydride and pyromellitic acid.  The esterification is catalysed by ion-exchange resins and minor amounts of strong acids and alkalis. Examples disclose the production of hydrocortisone phthalate, succinate, maleate, sodium hydrocortisone succinate, and the dibenzylethylenediamine salt of hydrocortisone succinate.ALSO:Sodium hydrocortisone succinate is obtained by adding hydrocortisone succinate to water containing sodium bicarbonate and the product isolated by freeze-drying.  An aqueous solution of the sodium salt is suitable for injection.  Saline may be employed to form an isotonic solution.
Patent GB-988362-A (GB)
Title: Improvements in or relating to electrophotography
IPC: G03G5/047
Filed: 1961-04-21
Abstract: 4 - Nitro - 41 - naphtho [1 : 2-d] - 1 : 2 : 3 - triazoly (2)-stilbene is made by oxidizing the corresponding 2 - amino - naphthalene - azostilbene with lead (IV) oxide.  3 - Mercapto - quinolino [2 : 1-c] - 1 : 2 : 4 - triazole is made by treating 2-hydrazinoquinoline with allyl isothiocyanate and cyclizing the semicarbazide derivative so formed.ALSO:The polymeric photoconductive compositions of Specifications 964,875, including compositions based on poly-N-vinyl-carbazole itself, are modified by including therein as sensitizer a triazole, which may be substituted, or a condensed-ring compound containing a triazole nucleus.  A dye of the rhodamine type may also be present.  The preferred polymers are poly-N-vinyl-carbazole and copolymers thereof with methyl methacrylate.  Suitable triazole compounds are mentioned. Specifications 856,770, 964,873 and 964,884 also are referred to.
Patent GB-438373-A (GB)
Title: Improvements in or relating to processes and apparatus for surfacing sheet material with pigments, varnishes, lacquers, waterproofing solutions or the like
Filed: 1934-05-15
Abstract: 438,373. Coating webs. MELVILLE, W., Taynuilt, Fennels Way, Flackwell Heath, Buckinghamshire, BROWN, A. M., 6, Elvaston Place, Queen's Gate, and RAYMAKERS SYNDICATE, Ltd., Great Western Trading Estate, Park Royal, both in London. May 15, 1934, No. 14701. [Class 140] In coating paper &c. webs by depositing the coating material in the form of a liquid film on the surface of an immiscible flotation liquid and transferring the film as a coating on to the web, the film-forming liquid is fed to the surface of the flotation liquid by a path which includes a wick or wicks through which the liquid soaks. Thus, in apparatus of the type described in Specifications 405,761 and 405,762, film-forming liquid, e.g. a solution of printer's ink in petrol maintained at constant level in a trough 19 is supplied by a roller rotating continuously or intermittently therein through a wick 22 resting on the roller and hanging down over an inclined plate 24 to the surface of the flotation liquid, e.g. water, contained in a trough 10. The film so formed on the surface of the flotation liquid bounded by a frame 16 is continually drawn along the surface and removed by a web of paper passing under a doctor blade 12 touching or dipping into the flotation liquid. Patterns may be formed by agitating the film, e.g. by inclined discs 18 mounted on a rotating shaft 17, or the feed roller in trough 19 may be patterned. The wick may consist of separate narrow strips, and the single wick or separate wick strips may be fed from a common source or from separate sources, e.g. to produce stripes of different colours, and may dip into or terminate short of the flotation liquid, or may conduct the film-forming liquid to intermediate transfer devices in the form of plates, strips, wires, rotating feed rollers (patterned if desired), travelling endless bands, or to a pattern forming device such as 17, 18, which will in turn convey the film forming liquid to the surface of the flotation liquid. The inclined plate 24 may extend into, and the wick 22 stop short of, the flotation liquid. A ground colour may be fed at the back of the still pool formed by the frame 16, e.g. by droppers, and a second colour or colours fed by a wick or wicks to strips, wires, or a patternformer 17, 18. Shaded effects may be produced by varying the texture of the wick, e.g. pulling out threads. The wicks may be arranged to move, or to touch the surface of the flotation medium intermittently. The wick may be of cotton, woollen, or silk fabric, wire gauze, or threads. The lower end may be weighted by lead shot, weights, or a bar. The flow through the wick may be controlled by adjustable levers pressing thereon. Specification 332,190, [Class 140], also is referred to.
Patent GB-140666-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D11/00
Filed: 1919-06-11
Abstract: 0140,666. British Thomson - Houston Co., (General Electric Co.). June 11, 1919. Stuffing-boxes, substitutes for.-A method of supporting a turbine diaphragm applicable also for supporting labyrinth packing comprises a ring 9 which enters recesses 12, 13 in the diaphragm and casing, the diaphragm being forced on to the ring by wedges 15 and, in part, by the difference of steam pressure in the adjacent stages. The ring may be integral with the diaphragm, as shown in Fig. 4, or it may be L- or Z-shaped, the broad end surfaces of the ring resting on similar surfaces on the diaphragm and casing, as shown in Fig. 5. Pins 16 prevent rotation of the diaphragm. The labyrinth packing-ring 24 is similarly mounted within the diaphragm, and interacts with a sleeve 23 surrounding the main shaft and held between two adjacent rotor discs by a ring 21.
Patent GB-563627-A (GB)
Title: Improvements in or relating to the manufacture of mouldable compositions containing fibres
IPC: C08L61/06
Filed: 1942-10-22
Abstract: Mouldable compositions containing fibres are made by subjecting to heat and pressure a mixture of fibres and comminuted resin obtained by the method and apparatus described in Specification 562,308, [Group IX].  The resin-containing fleece, lap, or band may be heated in an oven for 10 minutes at 100 DEG  C. and 90 per cent humidity to cause the resinous binder to adhere to the fibres, and is reduced in bulk by mechanical pressure, e.g. between calender rolls, while warm. The consolidated product may be moulded in sheet or laminated form to produce flat sheets or simple articles, or may be disintegrated and moulded.  The resin may be natural or synthetic, e.g. a polyvinyl resin or a phenol- or urea-formaldehyde resin.  Specifications 404,686, 423,321 and 483,653, [all in Group IX], also are referred to.
Patent GB-606964-A (GB)
Title: Improvements relating to the catalytic hydroforming of naphthas
IPC: C10G35/14
Filed: 1945-06-12
Abstract: In a process for hydroforming naphthas in the presence of added hydrogen, the catalyst is a mixture of a sixth group metal oxide and calcium oxide on an inert support, and is maintained as a fluidized mass in the reaction zone and during regeneration in a separate zone with an oxygen-containing gas.  The catalyst may contain the sixth group metal oxide and calcium oxide in substantially equimolecular proportions, a preferred composition being 91 per cent activated alumina, 6 per cent molybdenum oxide and 3 per cent calcium oxide. Toluene is formed from a naphtha fraction under reaction conditions and in an apparatus substantially the same as described in Specification 606,664.  The use of catalysts having zinc spinel as a support, as claimed in Specification 606,664, is excluded from the scope of this invention.  Specification 571,352 also is referred to.ALSO:In a process for hydroforming naphthas in the presence of added hydrogen, the catalyst is a mixture of a Sixth group metal oxide and calcium oxide on an inert support, and is maintained as a fluidized mass in the reaction zone and during regenaration in a separate zone with an oxygen-containing gas.  The catalyst may contain the Sixth group metal oxide and calcium oxide in substantially equimolecular proportions, a preferred composition being 91 per cent activated alumina, 6 per cent molybdenum oxide, and 3 per cent calcium oxide.  Toluene is formed from a naphtha fraction under reaction conditions and in an apparatus substantially the same as described in Specification 606,664.  The use of catalysts having zinc spinel as a support, as claimed in Specification 606,664, is excluded from the scope of this invention.  Specification 571,352, [Group III], also is referred to.
Patent GB-612192-A (GB)
Title: Improvements relating to apparatus for operating devices having a negative resistance characteristic from an alternating electric current supply circuit
IPC: B23K9/10
Filed: 1946-05-17
Abstract: 612,192. Phase-changing; supply systems for arcs. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. May 17, 1946, No. 14961. [Classes 38 (ii) and 38 (iv)] A load having a negative resistance characteristic such as an arc lamp or welding device is fed from a single phase A.C. supply through a phase converter and rectifier, the impedance or impedances effecting phase conversion also forming the stabilizing ballast impedance. An arc 8 is energized through rectifiers 6, 7 from a two-phase supply produced in transformers 2, 5 by the condenser 1 and inductance 4 connected in parallel across the single-phase supply terminals 3. The two-phase currents may be displaced by 90 degrees by making the impedances of the condenser 1, inductance 4 and arc 8 equal. Condenser 1 and inductance 4 also stabilize the arc. The load current may be adjusted by connecting one or more condensers 9 in parallel with condenser 1 or inductance 4. One of the reactances 1 or 4 may be omitted or 1-3 phase operation may be obtained by the provision of a third circuit with its transformer primary connected, without impedance in series, across terminals 3. The two or three transformers may be combined into one structure. The advantages of supply through a phase converter and rectifiers are described in Specification 518,632.
Patent GB-185208-A (GB)
Title: Slipping preventing tread band for the wheels of motor vehicles
IPC: B60C27/08
Filed: 1921-05-30
Abstract: 185,208. Henstridge, G. A. May 30, 1921. Tread bands.-An emergency tread band foruse in enabling wheels to traverse stretches of soft ground is made of a length to envelope the greater part only of the circumference of the wheel so as to enable it to be fitted without lifting the vehicle or removing the wheels, and consists of strips a, a<1>, a<2> of a flexible, inexpansible material maintained in spaced relation by crossstrips b - - b<5> secured thereto as by riveting. Non-skid blocks or slats c of a hard-wearing. material are secured at the junction of the intermediate strip a<1> with each of the cross-strips except those at the ends. The slats may extend to the width of the outer strips a, a<2> and be disposed obliquely. When used on a tyre with twin treads, blocks or guide pieces may be secured to. the under surface of the band to lie between the treads. The band is secured on the wheel by adjustable means, which may comprise straps b<8> and buckles b'. In a modification, the straps and buckles may be replaced by hook bolts engaging loops on the ends of the band and adapted to be connected by a turn-buckle or by a strap and buckle. Loops b<6> may be provided at the sides of the band and may be formed from extensionsof the cross-strips or from separate pieces. The loops are threaded by straps e, e<1> which are adjustable in length, as by a buckle, so as to draw the loops down the sides of the tyre. The ends of the straps e, e<1> are looped to pass over the securing-straps b<7>, b<8>. Cross straps h, h<1> are provided to pass across the inside cf the felloe between the spokes, and are looped at their ends to pass over the securing-straps b<7>, b<8> and also, if required, over the straps e, e<1> between the loops b<6>. Metal pieces with looped ends may be substituted for the straps h, h<1>. As applied to the tyres of disc wheels, the securing-means may consist of double-ended hook bars connected to loops on the ends of the band and eyes on the sides of the wheel. Holes may be provided in the wheels to take the cross members h, h<1>. In spoked wheels, the securing-straps may be modified to anchor the ends of the band to the wheel spokes.
Patent GB-126012-A (GB)
Title: Improvements in Tripods and Mountings for Machine-Guns and Mounted Ordnance.
Inventor: MAUGHAN WALTON
IPC: F41A27/06
Filed: 1916-10-21
Abstract: 126,012. Maughan, W., and Maughan, F. Oct. 21, 1916. Field carriages; tripod and like mounts for machine guns and light ordnance.-Relates to mounts for machine and other guns provided with contour plates, as described in Specification 17609/15, for elevating the gun while it is traversed horizontally in order to sweep any desired line of target. According to the invention, the following main features are added to the mounting, namely : (1) a universal joint on one of the tripod legs beneath the contour-plate device, (2) an elevating gear between the gun and the contour-plate device, and (3) right and left-handed screw clamps for the lateral legs of the tripod. As shown, the standard 0 carrying the contourplate device has a forked lower end, which embraces a split sleeve 13 around the longitudinal cylindrical part of the rear leg of the tripod, and pivots on transverse pins B. The universal joint thus formed is clamped by means of loose handles 17 and serrated disks 14, which are prevented from rotating by keys 15. The lateral legs M have joints R clamped by right and lefthanded screw clamps worked by handles S. The legs have spades N, and are made with telescopic parts; and any number of legs may be used. The bracket H carrying the ball-ended leg 1 is jointed in front at J to the forked upper end V of the vertical spindle I. and at T to the gun K; and a compass joint E, F is interposed between the gun and the rear end of the bracket H, to permit the gun to be elevated independently of the contourplate device and of the joint B, for example in enfilading a trench. This compass joint is clamped by means of disks 10 and screw spindle D. The leg 1 is adjustable in a curved or straight slot 8 by means of a rack gear worked by a ranging wheel 2, and is pressed against the contour plate G by means of a spring X arranged within a front extension Z of the bracket H and bearing with a foot Y on the base of the forked upper end V of the vertical spindle I. The central spindle I is surrounded by a socket L, which is mounted on the standard O and carries the contour plate G; and these parts are clamped by ring clamps P, Q. Levels such as C are provided.