baber/WOPTO huggingface dataset:
Patent GB-532115-A (GB)
Title: Improvements in or relating to the production of aluminium
IPC: C22B21/00
Filed: 1939-06-29
Abstract: 532,115. Aluminium. ALLOY PROCESSES, Ltd. (Armandias, L. S.). June 29.1939. No. 18933. [Class 82 (i)] A method of obtaining aluminium comprises the production of an alloy of aluminium, iron, and silicon by the reduction of a mixture of aluminous and other compounds in an electric furnace, and the distillation of the aluminium from the alloy under a pressure of not more than 4 mm. of mercury. The original charge may consist of aluminous material together with iron oxides, silica, and carbon or carbides whereby the iron-silicon aluminium alloy is produced. Further alumina, preferably with some quicklime, may be added after the reduction, whereby reduction of the added alumina by silicon is effected. The aluminium may be distilled in presence of an inert gas such as hydrogen, argon, or methane, and may be condensed on water cooled metal surfaces. In the apparatus shown, aluminium-iron-silicon alloy produced in a furnace 11 is fed to an electrically heated refractory lined chamber 14 kept under vacuum by a pump 18, and the aluminium which distils is condensed on water-cooled surfaces 25, 28, which can be replaced by fresh surfaces as required. Specification 351,524 is referred to.
Patent GB-1079897-A (GB)
Title: Vehicle direction signalling switch
IPC: B60Q1/42
Filed: 1965-05-05
Abstract: 1,079,897. Road traffic signals on vehicles. BOYNE PRODUCTS Inc. May 5, 1965 [May 6, 1964], No. 18944/65. Heading G4Q. [Also in Division H2] A vehicle direction signalling switch (see Division H2) comprises an arcuate switch casing 4 and a relatively rockable arcuate actuator body (24) (Fig. 2, not shown), carrying two resilient conducting switching elements (31), (32), for bridging fixed contacts (Figs. 3, 4, 6, not shown), the switching elements (31), (32), rocking on conducting posts 29, 30. The actuator body (24) has flexible return fingers 25 which project, in operative positions, into the path of a cancelling cam 3a on the steering shaft 3. Body (24) is manually rocked via a handle 12 into either operative position and is indexed therein by detents (9) on casing 4 and ports 26 on body (24).
Patent GB-404217-A (GB)
Title: Improvements in and relating to hosiery and the production thereof on flat bar knitting frames
IPC: D04B9/46
Filed: 1933-07-04
Abstract: 404,217. Knitting. SCHUBERT & SALZER MASCHINENFABRIK AKT.-GES., 11, Lothringerstrasse, Chemnitz, Germany. July 4, 1933, No. 18957. Convention date, July 19, 1932. [Class 74 (ii).] Hosiery produced in one working operation on a flat bar knitting frame has, in the region of the heel enlargement and down to the line b, c, b<1>, widened courses extending continuously over the entire width of the article. In the lower part of the heel a gore c, c<1> is worked approximately at right angles or less to the narrowing line d, e', by casting on new wales, transferring outwardly selvedge loops in such a way as to make provision for seaming and subsequently narrowing on the heel portions while leaving the instep loops on the needles.
Patent GB-894526-A (GB)
Title: Improvements in sanding drums
Inventor: GREGORA JOHN
IPC: B24D9/04
Filed: 1960-05-28
Abstract: 894,526. Sanding drums. VINCENT BROS. PTY. Ltd. May 28, 1960, No. 18966/60. Class 60. A sanding drum drivingly mounted on a shaft 7 has an angled slot 10 in the wall of the drum, a pair of abrasive-sheet holding bars 15 which are rotatably mounted in the drum, disposed parallel to the slot, one on each side thereof, and project through the drum-ends in which they are held by locking means, and a pair of counter-balancing bars 25a, 25b, removably carried in sockets 23 so located that these bars are diametrically opposite the bars 15. The wall of the drum is circumferentially divided, the halves 1, 2, being held together by tie-bolts 3, the abutting circumferential faces having inter-fitting projections and recesses 4, 5, Fig. 2. The abrasive-sheet holding bars 15 are each provided with a flat face 22; the ends of the sheet are passed through the slot 10 and between the faces 22. The bars may be knurled to increase their grip as the sheet ends are wrapped round them when rotated by a spanner applied to the shaped end 21 of each bar. The surface of the drum may be peripherally grooved and a rubber sleeve 9 may be sealed to its outer surface, the drum and sleeve being split after assembly. The locking means for securing the bars after the sheet has been tensioned comprise wedges 17, 18, which apply pressure to the bearings 16 when a screw 19 is tightened. The counter-balance bars 25a, 25b, are a "tap" fit in the bosses 23 ; they may be eccentrically hollow and/or profiled and knurled at mutually opposite ends.
Patent GB-147036-A (GB)
Title: Improvements in cigarette cases
IPC: A24F15/12
Filed: 1920-07-06
Abstract: 147,036. Kimbel, W. March 19, 1919, [Convention date]. Lids. - A cigarette case or box of wood vulcanite, celluloid, oellon, &c. of the kind in which interengaging tongues 3, 4 on the body and lid are held by a pivot pin, has the surfaces 5, 8 on the tongues arc-shaped, the centre of the arc being outside the tongues so that it is possible to fashion the hinges by larger cutting- tools than usual. An internal rib 9, the surface of which is continuous with the surface 8 on the body, is provided to keep tobacco dust away from the hinge.
Patent GB-689897-A (GB)
Title: Improvements in or relating to mouthpiece cigarettes
IPC: A24D3/04
Filed: 1949-07-19
Abstract: 689,897. Cigarettes. MOLINS, D. W., BARTLE, P. J.; and MOLINS MACHINE CO., Ltd. July 14, 1950 [July 19, 1949; Nov. 24, 1949], Nos. 19000/49 and 30200/49. Class 130. In a cigarette comprising a tobacco filler, a paper tube, and a mouthpiece portion, the tube is provided with a patch, line or the like of adhesive material on a part of its interior surface which encloses a part of the tobacco filler and which is in close proximity to the inner end of the mouthpiece portion. In Fig. 1 a cigarette paper is provided with lines of adhesive 1 at positions adjacent the ends of double-length sections of tobacco filler T deposited thereon together with double-length mouthpieces F. The composite rod formed therefrom is cut at the points C. In Fig. 2 a cigarette paper for forming a cigarette rod is provided with lines of adhesive 1 at the points C<SP>1</SP>, at which the rod is cut to provide double-length rod sections T. These sections are subsequently joined to mouthpiece sections by means of cork bands and the resulting composite rod cut at the mid-points of the mouthpiece and rod sections. The adhesive used, e.g. sodium silicate, preferably renders the cigarette paper incombustible at that point, and if it shows through the paper an external wrapper or tip of cork or paper may be applied to hide it.
Patent GB-240272-A (GB)
Title: Device for the automatic control of flying machines
IPC: B64C1/00
Filed: 1924-08-11
Abstract: 240,272. Simpson, A. G. Aug. 11, 1924. Regulating altitude. - An automatic device for maintaining an aeroplane at a fixed flying speed comprises a box divided by a flexible diaphragm a into two compartments a<1>, a<2>, the compartment a<1> communicating with the atmosphere through a. closed tube d<2> pointing in the direction of flight and having holes d<4> near its end, and the pressure compartment a<2> communicating with the outer air through an open-ended tube d' also pointing in the direction of flight. A rod c fixed to the centre of the diaphragm a, controls a valve or switch which in turn controls the elevators of the flying machine. The normal position of the diaphragm a and the rod c is governed by a spring g<1>, the compression of which may be adjusted by moving the locking nuts k, m. Te device may be put out of operation by raising a lever n. In operation, if the aeroplane loses flying speed, the pressure in the compartment a<2> becomes too low to resist the compression of the spring g<1>, and the rod c is moved to the right through the medium of the forked lever f<1> and pin e, operating a switch or valve which controls a source of electricity or compressed air for depressing the elevators. The nose of the machine is thereby put down and when normal flying speed is regained, the pressure in the chamber a<2> again overcomes the compression of the spring g', the rod c is moved to the left, and the elevators are restored to their normal position.
Patent GB-596265-A (GB)
Title: Improved volt ampere meter for a limited range of power factor
IPC: G01R11/48
Filed: 1945-07-25
Abstract: 596,265. Power meters; supply meters. LANDIS & GYR SOC. ANON. July 25, 1945, No. 19072. Convention date, Feb. 21, 1941. [Class 37] In a volt-ampere meter of the type wherein an internal difference of phase between the current and voltage driving fluxes is predetermined at more than 90 degrees for a fixed power factor range, this phase difference characteristic is obtained by division of the current coil system into two oppositely wound parallel connected branch coils 7<1>, 4<2>, 5<1>, 5<2>, wherein the current conditions are so adjusted relative to one another, e.g. by an ohmic resistance 6 in series with branch coil 4<1>, 4<2>, as to produce a resultant driving flux which leads the voltage flux by more than 90 degrees for the selected power factor range, e.g. 0.5 to 0.9. A shunt core 7 which surrounds the poles of the current magnet between the coil branches acts to conduct the flux produced by the coils 5<1>, 5<2>.
Patent GB-1081205-A (GB)
Title: Friction hinge for windows and the like
Inventor: LANG JACK
IPC: E05D11/00
Filed: 1965-05-06
Abstract: 1,081,205. Window pivots; friction hinges. CROMPTON NETTLEFOLD STENMAN Ltd. June 30, 1966 [May 6, 1965], No. 19096/ 65. Heading E2F. A hinge for windows comprises a hollow cylinder with a body pin co-axially disposed therein, each being mounted on a bracket, and the pin surrounded by a slit collar of flexible material of slightly smaller diameter than the cylinder, wherein the diameter of the collar may be altered by a screw having a tapered end entered into the slot, to provide variable friction between the hinge parts. A hollow cylindrical member 11 on a bracket 12, co-axially surrounds a body pin 13 and a disc 14, on a second bracket 15, with a nylon collar 16 interposed between the cylinder and pin, and keyed to the latter to prevent rotation of the collar relative to the pin. The collar is split along one side 17, and has a hole 18 diametrically opposite the split; the pin has a tapped hole 20 on a line 17 - 18 to take a tapered-end screw 19, the tapered end engaging a tapered recess in the split of the collar, at which point the collar is thickened. The cylindrical member has a hole 21 for access to the head of the screw.
Patent GB-147095-A (GB)
Title: Improvements in cream separators
IPC: B04B11/02
Filed: 1920-07-07
Abstract: 147,095. Bechtolsheim, Clemens, Baron von, Bechtolsheim, Max, Baron von, and Bechtolsheim, Georg, Baron von. May 19, 1919, [Convention date]. Density separators.-To prevent the formation of foam, a plate c is arranged on the cylinder just below the outlet for the separated liquid. In another form the outflow aperture is arranged at an angle to the radius of the cylinder and the outflow channel may be enlarged at its outer end. In another form, Fig. 6, the outflow channels d are arranged tangentially.
Patent GB-872291-A (GB)
Title: Improvements in or relating to fuel systems for aircraft gas turbine engines
Inventor: CUNLIFFE RAYMOND
IPC: B64D47/00
Filed: 1956-06-20
Abstract: 872,291. Fluid-pressure servomotor-control systems. BRISTOL SIDDELEY ENGINES Ltd. Sept. 20, 1957 [June 20, 1956], No. 19146/56. Class 135. [Also in Group XXVI] In air-fuel ratio control means for aircraft gas turbine engines, valve 15 controlling burner fuel pressure is actuated by two opposing forces dependent on burner fuel and compressor delivery pressure, of which one is dependent on only a proportion of its determining pressure, the proportion varying with nacelle pressure so that burner fuel pressure varies inversely with nacelle pressure, and by a third force dependent on nacelle pressure whereby burner fuel pressure varies directly with nacelle pressure. The delivery of a pump 10, e.g. as described in Specification 577,016, supplying fuel via a pilot's throttle 11 to the burners 12, is increased when a nozzle 15a is closed by a hinged valve 14 acted upon by a piston 18 responsive to compressor discharge pressure at 18a and by an oppositely acting piston 16 responsive to a proportion of the burner fuel pressure via pipe 19 and restriction 20, the proportion being determined by a needle leak-off valve 22 which closes when pump delivery pressure acting on piston 23 increases, the pump delivery pressure being proportional to the nacelle pressure. A dashpot 31 prevents quick opening of valve 22 on decrease of pressure in pipe 23a due to sudden opening of the throttle 11. The lefthand end of lever 14 extends through a partition 13 into a chamber where nacelle pressure, i.e. air intake pressure dependent on aircraft speed and barometric pressure acts on the top of piston 18 and on a barometric capsule 17 of effective area greater than that of piston 18 so that the capsule and piston close valve 15 with increase in nacelle pressure. In a modification, the burner fuel pressure acts wholly on piston 16 and compressor delivery pressure, similarly modified by valve 22, acts on piston 18, except that valve 22 opens with increase in pump delivery.
Patent GB-256047-A (GB)
Title: A false tooth and a process for producing the same
IPC: A61C13/10
Filed: 1925-07-28
Abstract: 256,047. Jacobsen, N. O. July 28, 1925. Teeth, artificial. - In an artificial tooth of the kind comprising a facing and a backing plate having a projection entering a recess in the facing and moulded directly from a wax impression of the rear of the facing, the latter is formed with a recess having parallel lateral sides cut in the base and rear surfaces. The facing may be covered with thin tin foil before the wax impression is taken in order to reduce the size of the impression so that the backing moulded therefrom may fit easily in place on the facing. The facing is formed with a recess f opening on the base a and rear surface b. The recess is bounded by parallel lateral surfaces g, h, i, j and is undercut by walls k, l parallel with the cutting surface c of the tooth. The backing plate d, Fig. 3, has a projection corresponding to the recess f and parallel surfaces m, n, o engaging the surfaces c, k, l of the facing.
Patent GB-875245-A (GB)
Title: Waveguide window
IPC: H01P1/08
Filed: 1959-06-04
Abstract: 875,245. Waveguide windows. COMPAGNIE FRANCAISE THOMSON-HOUSTON. June 4, 1959 [June 4, 1958], No. 19172/59. Class 40(8) An airtight window between two waveguide sections comprises an insulating plate of material transparent to radiation which is secured between flanges terminating the waveguide sections and has its faces metallized over at least those portions which are in contact with the flanges. In the construction shown a plurality of holes 2 enable the window 1 to be clamped between waveguide flanges. Each face has a metallic deposit 3 which may be sprayed zinc. The coatings terminate at lines 4 corresponding to the inner faces of the broad walls of the waveguides, but are extended beyond the inner faces of the narrow walls in strips 5 and 6 to provide a matching iris. The coatings on the two surfaces of the window are connected together by spraying the edges of the window and the internal surfaces of the holes 2. The latter surfaces may be protected by a coating of varnish.
Patent GB-187034-A (GB)
Title: Improvements in or relating to vacuum or low pressure tubes or the like for electrical discharges
IPC: H01J17/04
Filed: 1921-07-16
Abstract: 187,034. Colebrooke, A. H. S., and' Williams, W. A. July 16, 1921. Vacuum tubes; low-pressure metallic-vapour apparatus. - An electrode has an insulating sleeve arranged so that at the sides of the end of the electrode a portion is uncovered, from which the discharge takes place; or both the electrodes may be so arranged. As shown, the end of an electrode 1 projects beyond a sleeve 2, and is covered by a glass or other insulating bead 4, so as to leave a side portion 1<a> exposed; the sleeve 2a of the other electrode 1<b> has perforations 2<c> near the end to expose the electrode. Either of the electrodes may be used in a tube with an incandescent filament electrode, the leads of which are encased in a sleeve. The 'electrodes may be made in one or more parts, and may be enlarged at the exposed ends. The tube may be of spherical, cylindrical, or flattened shape, and may contain one or more gases such as nitrogen, hydrogen, oxygen, argon, neon or carbon dioxide, metallic vapours, such as mercury or sodium, or water vapour. Phosphorus or other de-oxidizing material may be provided in the head or elsewhere to improve the vacuum and prevent blackening. According to the Provisional Specification, an electrode may extend to the end of an unperforated sleeve.
Patent GB-596483-A (GB)
Title: Improvements in or relating to compressed air starting devices for internal combustion engines
IPC: F02N9/04
Filed: 1945-07-27
Abstract: 596,483. Compressed air starters. LEVERSEDGE, F., and RUSTON & HORNSBY, Ltd. July 27, 1945, No. 19236. [Class 7 (v)] An internal combustion engine compressed air starting apparatus has a nori-return safety valve 9 between an air starting valve 1 and an air receiver so that it will admit air during the starting period but will immediately close when the pressure in the engine cylinder or chamber 15 rises above that of the supply pressure so preventing any flames present from entering the air receiver. When compressed air enters the annular chamber 23 through the junction piece 31 it flows to the chamber 14 and by its action on the upper undercut portion of the safety valve 9 drives the said valve -vertically downward against the action of the return spring 20, which seats on the air valve finger guides 18, and on to the stop 19. The air then passes between the safety valve and the walls of the chamber 15 and acts upon and opens the air valve 1, which is restrained by a coil spring 27, and enters the engine cylinder. The safety valve piston 9 is counterbored at its lower end to accommodate the upper end of the spring 20 and the length of contact between the bore of the piston and the valve stem is such as to prevent a flame under pressure on the underside from reaching the upperside of the said piston.
Patent GB-950547-A (GB)
Title: Process for the production of melamine
Filed: 1962-05-18
Abstract: Melamine is prepared by heating ammonium thiocyanate and/or thiourea or the thermal decomposition products thereof to a temperature of between 200 and 500 DEG C. in the presence of catalysts with adsorptive properties and a total specific surface area of more than 0.1 m2/g., and preferably in the presence of ammonia. The catalysts are preferably gels of aluminium oxide, silicic acid, titanium dioxide, zirconium dioxide or mixtures thereof; active carbons and naturally-occurring large surface area substances such as diatomaceous earth, kieselguhr and bentonite, which may be impregnated with boric or phosphoric acid; finely-divided carbon and oxides without intrinsic surfaces containing phosphoric or boric acid or mixtures of such oxides containing phosphoric or boric acid, with or without finely-divided carbon.
Patent GB-256621-A (GB)
Title: Improvements in and relating to scutching-machines for flax, hemp and like fibrous materials
IPC: D01B1/30
Filed: 1926-08-04
Abstract: 256,621. Leterme, C. D. M. J., and Leterme, M. V. J. C. Aug. 7, 1925. [Convention date]. Scutching-apparatus.-Apparatus for scutching automatically flax and like fibres comprises a belt 2 passing round a main drum 1 and a small drum 9 and associated belts 3, 4 passing round drums 5 - - 8. The flax stalks, laid on a belt 18, are first fed between the belts 2, 3 by a slow clockwise rotation of the drum 1 between the upper pair of plates 10 to the scutching-devices 11. The drum is stopped and the flax stalls held during scutching. The drum is then rotated quickly in the reverse direction to withdraw the stalks, the root ends of which are then engaged between the belts 2, 4 and fed forward by a slow rotation of the drum in the same direction. They are passed between the lower pair of plates 10 and are held whilst the drum remains stationary during the scutching period. The drum then rotates quickly in the clockwise direction to lay the fully scutched stalks on the belt 4 for delivery. The rotation of the drum 1 is obtained from a crank 26 through a conecting-link 29 carrying a roller 29a engaged by a suitably shaped slotted member 31 on the shaft of the gear 30 meshing with a pinion 32 on the drum shaft. The belt 18 is mounted on a pivoted frame 16 and can be raised to deliver the stalls to the belts 2, 3 or lowered to assist in guiding the partly scutched stalks to the lower pair of belts 2, 4. The frame 16 is connected by a link 17<a> to the roller 6 and to a lever 17 controlled by a cam 25 and weighted link 27. The roller 8 is raised to receive the unscutched ends of the partly scutched stalks between the belts 2, 4 and is lowered when the fully scutched stalks are returned along the belt 4 for delivery. The roller 8 is suspended by linkage from a fixed pivot 14b and is controlled by a cam 24 and link 28. The rollers 5, 6 are carried by pivoted members 12<c>, a link 12<b>, and a weighted bell-crank-lever 12. The scutching-devices comprise steel blades 11 mounted on hard wood supports 11<a> having a rounded outline. The plates 10 are adjustable relatively to one another and to and from the paths of the scutching blades. The distances between the upper pair of plates is less than that between the lower pair to ensure more rigorous treatment of the upper ends of the stalks. The axis of symmetry of the central plate is slightly above the central line between the scutching-devices. The apparatus is mounted on a suitable framework and enclosed to collect the dust, waste, &c.. which may be removed by hand or by a fan.
Patent GB-646114-A (GB)
Title: Improvements in closures for receptacles adapted to discharge the contents in drops,streams or otherwise
IPC: B65D47/18
Filed: 1948-07-19
Abstract: 646,114. Screw stoppers. GRIENSEYSS, K. July 19, 1948, No. 19348. [Class 125(iii)] A screw closure for a liquid receptacle is provided at one side with a small opening e serving to admit air and on the other with a hole f through which the liquid can flow out when the closure is screwed back to some extent from its closing position. Above the hole f, the closure is formed with a lateral extension or nose b on which the issuing liquid forms drops. The receptacle is sealed when the closure is screwed down by a compressible disc c. In Fig. 5 (not shown) the construction is similar except that the closure is externally threaded and screws into the neck of the receptacle.
Patent GB-122623-A (GB)
Title: Improvements in or relating to the Production of Alumina from Clay and similar Materials.
IPC: C01F7/24
Filed: 1918-11-26
Abstract: 122,623. Norske Aktieselskab for Elektrokemisk Industri Norsk Industri-Hypotekbank. Tan. 24, 1918, [Convention date]. Alumina; aluminium nitrate.-Kaolin, clay marl, halloysite, shale, and the like is calcined at about 500‹ C, preferably in a reducing atmosphere, and then treated with nitric acid, for instance 30 per cent strength, or with nitrogen oxides and steam or water. The aluminium nitrate solution is separated from the residue and treated to obtain alumina, e.g., by calcining or by precipitation with ammonia.
Patent GB-904698-A (GB)
Title: Process for drying alkali metal cyanides containing water
IPC: C01C3/10
Filed: 1960-06-01
Abstract: Alkali-metal cyanides containing water are dried by heating to a temperature not higher than 500 DEG  C., preferably not higher than 300 DEG  C., in a process in which the cyanide passes through the temperature range of 80 DEG  C. to 150 DEG  C. in not more than 20 minutes.  The total drying time is desirably not more than 60 minutes, and preferably between 20 and 40 minutes.  The drying chamber may be pre-heated to 200 DEG C.-500 DEG C. before being charged.