baber/WOPTO huggingface dataset:
Patent GB-935217-A (GB)
Title: Recovery of lithium valves from lithium-bearing minerals
Inventor: ARCHAMBAULT MAURICE
IPC: C22B26/12
Filed: 1960-02-09
Abstract: 935,217. Lithium carbonate production. MlNISTERE DES RICHESSES NATURELLES. Feb. 7, 1961 [Feb. 9, 1960], No. 4594/61. Divided out of 934,447. Class 1(2) Lithium carbonate production is effected by treating hydrothermally a calcined lithiumbearing silicate in the form of ore or concentrate with an aqueous mixture of sodium carbonate and sodium hydroxide in an amount preferably from 5 to 12 times the weight of lithium oxide present. The mole ratio of sodium carbonate to sodium hydroxide is preferably from 0À5 to 5À0. The resulting slurry containing water in an amount from 1À5 to 5 times the weight of lithium-bearing charge is leached with aqueous (NH 4 ) 2 CO 3  solution in an amount from 5 to 20 times the weight of lithium oxide present, at 0‹ to 40‹C., and the remaining solid residue is removed. The lithium carbonate is recovered by heating the resulting solution at 60‹ to 100‹C., or by beating, agitation, ultrasonics or vacuum treatments and separating the lithium carbonate precipitate by filtration. The solution may be treated with an alkaline earth metal hydroxide and recycled. The lithiumbearing silicates may be spodumene, petalite, eucryptite or lepidolite, previously calcined at 680‹ to 980‹C. The initial reaction forms a silicated lithium compound and a hydrated sodium alumino silicate, the latter forming an insoluble-ammoniated zeolite on contact with the ammonium carbonate. The ammonia may be recovered for recycling by heating the zeolite or treating it with alkaline earth metal hydroxide, or polyvalent metal salts.
Patent GB-728292-A (GB)
Title: Construction of metal cabinets
IPC: H02B1/01
Filed: 1952-02-21
Abstract: 728,292. Cabinets. GENERAL ELECTRIC CO., Ltd., BLANTERN, J. R., and RONNIE, N. W. Jan. 27, 1953 [Feb. 21, 1952], No. 4626/52. Class 52 (1). A sheet-metal cabinet has a framework of hollow L - sectioned girders with fins 10, 11 which form rebates to receive the wall and door panels 2 ... 6, which latter are of hollow boxlike construction. The girders are formed from bent strips 7, 8 welded together and with their ends mitred to form the corner joints which are preferably welded. Specification 722,035, [Group XXXVII], is referred to.
Patent GB-521680-A (GB)
Title: Automobile radiator shutter
IPC: F01P7/10
Filed: 1939-02-13
Abstract: 521,680. Radiators for motor-vehicles. CARLSON, D. I. E. Feb. 13, 1939, No. 4633. [Class 64 (iii)] An automobile radiator screen comprises a spring-loaded roller-blind enclosed in a casing 5 mounted between the radiator and the grille by arms 19, Fig. 3, formed on loose rings 18 at the ends of the casing. The casing is formed with a slot adapted to be closed by a rubber &c. list 7 secured to the outer edge of the blind and to which is attached an operating-cord passing over a roller, or through an eye on the top of the radiator to the dashboard. The cord may be held in position by a pivoted grip-plate 14, Fig. 5.
Patent GB-828552-A (GB)
Title: Improvements in rotor blades for turbines or compressors operating at high temperatures
IPC: F01D5/18
Filed: 1957-02-11
Abstract: 828,552. Turbine and compressor rotor blades. MASCHINENFABRIK AUGSBERG-NURNBERG A.G. Feb. 11, 1957 [Feb. 11, 1956], No. 4674/57. Class 110 (3). In a rotor blade for use in a turbine or compressor operating at high temperatures, the cross-sections of the blade part which in use will be subject to maximum stresses, are enlarged by lengthening the blade profile; means are also provided for causing gaseous or vaporous cooling films to flow only over the enlarged blade part. In Fig. 1a the blade 3 is secured by a root 4 in the rotor disc 1 and the profile of the blade aerofoil portion adjacent the root is extended as at 6, the root portion 4 also being extended. The outline of a normal blade is indicated by the dotted line 5. Slots are provided adjacent the leading edge of the extension through which cooling air is discharged over the part of the blade which is extended, i.e. the part X of the aerofoil portion. The cross-section through the enlarged portion 6 is shown in Fig. 2, the profile of the non-enlarged portion being indicated at 7. A bore 8 is provided adjacent the leading edge of the enlarged portion, cooling fluid discharging from the bore through an orifice 9 and flowing over both the concave and convex faces of the enlarged portion. In a second embodiment, two cooling fluid bores are provided in the leading edge portion, one discharging cooling fluid over the concave face and the other discharging over the convex face of the enlarged portion. In Fig. 4, two cooling fluid bores 14, 15 are provided and the profile of the enlarged portion 6 is grooved at 16, 17 and cut away as indicated at 19, 20, cooling fluid being drawn out of the bores by suction produced in the slots 16, 17. The profile of the enlarged part of the blade 6 before being cut away is indicated at 18.
Patent GB-248364-A (GB)
Title: Improvements relating to helicopters
IPC: B64C1/00
Filed: 1926-02-18
Abstract: 248,364. Filippi, A. P. Feb. 27, 1925, [Convention date]. Helicopters; propelling; steering and balancing.-The balance and direction of a helicopter at low speeds are maintained by surfaces which are projected from the body of the machine into the downdraught from the propellers automatically under pendulum or gyroscopic control. The surfaces may comprise collapsable fan-like blades 8, 9, 10 pivoted about vertical axes 12 and adapted to be expanded into the downdraught of two concentrically mounted lifting screws by compressed air apparatus actuated by a gyroscope or a pendulum 21, Fig. 3. The pendulum 21 is rigid with a disc 19 moving in a hemispherical dome 15 supplied with compressed air through a conduit 13, the disc 19 normally closing parts in a series of cylinders 16, 16<1> to prevent access of compressed air thereto but leaving them open to atmosphere beneath the disc. Relative movements of the disc and dome result in compressed air being admitted to the appropriate cylinders which are provided with pistons to actuate the corresponding surfaces 8. 9, 10. To effect steering, dorsal fins, curved or inclined, may be projected into the downdraught. A machine also is described having a longitudinal row of pairs of concentric lifting screws on each side of the machine, a pair of forward concentric tractor propellers, a pair of concentric rear propellers, and movable balancing surfaces consisting of single blades normally housed in the body of the machine. The lifting screws and propellers are constructed according to Specifications 15656/09. [Class 114, Ships &c., Propedling &c.], and 14736/12. According to the Specification as open to inspection under Sect. 91 (3) (a) the balancing surfaces may be moved manually. This subject-matter does not appear in the Specification as accepted.
Patent GB-348538-A (GB)
Title: Improvements in horse or traction hoes
IPC: A01B35/08
Filed: 1930-02-12
Abstract: 348,538. Implements for working land. RAE, J. S., Linthill, Ayton, Berwickshire. Feb. 12, 1930, No. 4700. [Class 6 (i).] A horse or traction hoe comprises rear hoe blades 14 rigidly suspended from a transverse shaft 13 rocked by a lever 18 movable over a notched quadrant 19, and one or more front stationary or non-rotary hoe blades such as 23, 29, carried at the lower ends of rigid upright bars or legs such as 24, 30 each adjustable in a vertical or substantially vertical direction as by clamps 26 adjustable along longitudinal frame bars of the implement; the angle of incidence of the blade to the ground is varied either by adjustment of the clamp 26 along a quadrant 25 or by the insertion of a wedge 31 into the clamp before or behind the upright bar. The implement may be provided with a front drawhook 37 adjustable by a pin 40 and bolt holes 39 so as to raise or lower the front of the implement. The blades may be of rectangular shape or rounded at the front edge and may be detachably riveted to the legs or made integrally with them. The wedges 31 may be attached by chains 32 to the legs 30. A front guide-wheel 43 may be provided with a support 44 so clamped to the implement that the wheel can be adjusted vertically.
Patent GB-271156-A (GB)
Title: Improvements in or relating to valves and cocks
IPC: F16K27/06
Filed: 1926-02-18
Abstract: 271,156. Vickers, Ltd., and Duncan, T. S. Feb. 18, 1926. Making; materials, special.- A cock having a light metal body A, Fig. 3, and a lining B of different metal more suitable for the working surface is made by first inserting a turned block B, Fig. 1, of brass &c. into the light-metal stamping A. After further heating the body is then forged in dies and finally machined to shape.
Patent GB-871124-A (GB)
Title: Improvements in or relating to fused quartz fibres
IPC: C03B37/065
Filed: 1959-02-11
Abstract: 871,124. Fused quartz fibres. ENGELHARD INDUSTRIES Inc. Feb. 11, 1959 [March 20, 1958], No. 4790/59. Class 56. In the making of fibres from fused quartz material, a gas flame at a higher temperature than the melting temperature of fused quartz is passed into an open ended combustion conduit, the material is fed into the flame, a high pressure gas is passed over the flame to direct the flame over the material during its passage through the combustion conduit so that it is melted by the heat of the flame and the molten material is drawn into fibres by the velocity of the high pressure gas. As shown, a rod 16 or tube of fused quartz is fed by drive rolls 18, 19 through a passage 10 in an elongated gas nozzle 1 having four equally spaced conduits 2, 3 through which combustible gas at high pressure is fed to give flames 20 at a temperature higher than the melting point of the rod 16. An outer nozzle 6 surrounds the nozzle 1 to form a narrow conduit 9 and a combustion chamber 8 with an outlet 7 beyond the flames 20. The nozzle 6 has an external flange 12 and is threaded at 13 for engagement by the threaded inner end 15 of a cone 14. High pressure air or other gas is introduced into cone 14 and passes through conduit 9 to surround the flames 20 and draw the molten rod 16 into fibres. When a tube of quartz is used, high pressure air may be passed therethrough also to assist in forming fibres. In a modification, the opening 7 of nozzle 6 is inserted into a long tunnel or tube having a tubular screen at its far end as a gas velocity relief, the tunnel appearing to assist in the formation of longer fibres which may vary from 6 inches to 6 feet, the fibres being deposited in the tunnel.
Patent GB-860763-A (GB)
Title: Improvements in or relating to magnetostrictive ultra-sonic transducers
IPC: B06B1/08
Filed: 1959-02-11
Abstract: 860,763. Magnetostrictive transducers. BENDIX CORPORATION. Feb. 11, 1959 [Feb. 21, 1958], No. 4812/59. Class 40 (8). A magnetostrictive ultra-sonic transducer has a core 10 formed by a stack of unperforated laminations of magnetostrictive material such as nickel, the core having a pair of parallel legs 11, 12 of equal length joined at one end by magnetostrictive material 13 formed integrally therewith so that the stack is U-shaped. The part 13 of the stack is secured to a load element 14 which can be a container for cleaning liquid. At the outer side of the legs 11 and 12 at the nodal plane midway along the length of the core 10, the individual laminations are provided with notches 15, a pair of pins 16 held in the notches by springs 17 connecting them holding the transducer energizing windings 18 and 19 and a polarizing magnet 200 with respect to the core 10. The windings 18 and 19 are in opposite directions about hollow insulating cores encircling the legs 11 and 12. The polarizing magnet has a permeability approaching unity, is polarized across its smaller, thickness dimension, and is freely supported between the legs 11 and 12 by a bracket 22 whose upper ends are held by the springs 17. The windings 18 and 19 are subjected to an A.C. the wavelength of which is substantially twice as long as the mechanical length of the core 10.
Patent GB-1513081-A (GB)
Title: Rotary positive-displacement unit
IPC: F01C1/077
Filed: 1976-02-06
Abstract: 1513081 Rotary positive-displacement fluid-machines E WILDHABER 6 Feb 1976 [20 Feb 1975] 4813/76 Heading F1F [Also in Division B3] In a machine of the "cat-and-mouse" type, which may be a compressor, I.C. engine, or pump, coaxial bladed rotors 21, 22 are inter-connected by approximately elliptic gears 28, 28' meshing with eccentric circular gears 27, 27 on a counter-shaft 26, the pitch lines 43, 44 being such that as the rotors revolve they also oscillate relative to each other with simple harmonic motion. Preferably, the gear tooth ratio is 2:1. Alternatively, the gear tooth ratio is 1:1 and the pitch line of each of the gears on the counter-shaft has two diametrally opposed re-entrant portions, Fig. 9 (not shown). The gear teeth may be straight or helical. Balancing weights 49 may be attached to the gears 27, 27'. The gears may be disposed on only one side of the rotor blades, Fig. 6 (not shown), the gear tooth ratio then being 1:1.
Patent GB-1454049-A (GB)
Title: Distillation processes
IPC: B01D1/28
Filed: 1974-02-01
Abstract: 1454049 Distilling liquids SYBRON CORP 1 Feb 1974 [20 Feb 1974] 04833/74 Heading B1B In a process for distilling water (or other liquid) part of the water supplied through line 10 and heat exchangers 11, 31 where it is heated by distillate, is fed to steam generator 22 and part to calandria 15, the generator 22 being at a higher pressure than calandria 15. Steam is removed from calandria 15 by jet ejector 25 receiving steam from generator 22 and by jet ejector 35 receiving distillate from heat exchangers 11, 31. The effluent from ejector 25 is passed through the shell side of calandria 15 whereby it is condensed and the liquid in the tubes of calandria 15 is evaporated. The condensed distillate is collected in tank 28. The steam removed by ejector 35 is condensed by contact with the distillate supplied thereto and passed into tank 28. Distillate is discharged. through line 32 which contains a valve controlled by a liquid level sensor in tank 28. In the initial stages of the process valve 36 is kept closed until the temperature of the distillate supplied to ejector 35 is at the desired level. Heater 23 in generator 22 may be an electric unit, a steam coil or a gas or oil burner.
Patent GB-470817-A (GB)
Title: Improvements in the manufacture and production of ethyl chloride
IPC: C07C17/354
Filed: 1936-02-18
Abstract: Ethyl chloride is produced by reacting a gaseous mixture of vinyl chloride and hydrogen in the presence of a hydrogenation catalyst at an elevated temperature, the mixture containing only small amounts, preferably less than 20 per cent by volume, of vinyl chloride.  The mixture is preferably lead over the catalyst so rapidly that only half or less of the vinyl chloride is converted.  The mixture from the reaction chamber is cooled, the ethyl chloride separated from the vinyl chloride by distillation, and the latter mixed with hydrogen for re-use.  Separation may be partial, so that a portion of the ethyl chloride may be returned to the chamber.  Reaction temperatures of 50--200 DEG  C. are specified.  Pressure up to 200 ats. is advantageous.  Suitable catalysts are metals of the 8th group of the periodic system, in particular, precious metals of this group, especially palladium and platinum.  Other metals such as zinc and nickel, and compounds such as calcium hydride are also suitable.  The catalysts are preferably finely distributed on carriers, e.g. silica or alumina gels or active carbon.  In the case of precious metals of the 8th group, only about 1 per cent of the active substance should be present.  Examples are given.ALSO:Ethyl chloride is produced by reacting a gaseous mixture of vinyl chloride and hydrogen in the presence of a hydrogenation catalyst at an elevated temperature, the mixture containing only small amounts, preferably less than 20 per cent by volume, of vinyl chloride.  The mixture is preferably lead over the catalyst so rapidly that only half or less of the vinyl chloride is converted.  The mixture from the reaction chamber is cooled, the ethyl chloride separated from the vinyl chloride by distillation, and the latter mixed with hydrogen for reuse. Separation may be partial, so that a portion of the ethyl chloride may be returned to the chamber.  Reaction temperatures of 50--200 DEG C. are specified.  Pressure up to 200 ats. is advantageous.  Suitable catalysts are metals of the 8th group of the periodic system, in particular, precious metals of this group, especially palladium and platinum.  Other metals such as zinc and nickel, and compounds such as calcium hydride are also suitable.  The catalysts are preferably finely distributed on carriers, e.g. silica or alumina gels or active carbon.  In the case of precious metals of the 8th group, only about 1 per cent of the active substance should be present.  Examples are given.
Patent GB-811331-A (GB)
Title: Electrolytic condenser
IPC: H01G9/10
Filed: 1956-02-17
Abstract: 811,331. Electrolytic capacitors. STANDARD TELEPHONES & CABLES Ltd. Feb. 17, 1956 [Feb. 18, 1955], No. 4999/56. Class 37. In an electrolytic capacitor, the surface of the non-formed electrode is coated with a spongy layer of gold, silver, platinum, rhuthenium, rhodium, palladium, osmium or iridium. As shown, the casing 6 which acts as cathode is roughened before being coated with an electrolytically deposited layer 14 of platinum black. A sintered tantalum anode 1 is suspended from a tantalum plate 3 having annular indentations which are forced against a seal 7 by the cover 9. An insulating layer 15 and a connecting disc 10, which may carry a soldering lug, are provided. The platinum layer is stated to reduce resistive loss and to maintain the composition of the electrolyte 13.
Patent GB-291046-A (GB)
Title: Improvements in or relating to mountings for cop-holders or the like for supporting cops or the like during winding and unwinding
IPC: B65H54/54
Filed: 1928-02-17
Abstract: 291,046. Universal Winding Co., (Assignees of De Wolf, E. A.). May 25, 1927, [Convention date]. Winding-machines.-The spindle 2 upon which a cop-holder 5 is mounted is provided with a selflubricating bushing, e.g. of wood impregnated with graphite, or other similar lubricant rotatably mounted thereon. Two bushes 10 may be provided separated by a sleeve the bushes being retained by the shoulder 12 and a washer 16 and split-ring 17. The end of the spindle 2 is provided with a spring-controlled latch 20 for retaining the cop-holder 5 thereon.
Patent GB-735379-A (GB)
Title: Improvements in or relating to railway transport containers
IPC: B65D90/14
Filed: 1953-02-24
Abstract: 735,379. Railway transport containers. BRAUEREI FELDSCHLOSSCHEN. Feb. 24, 1953 [March 4, 1952], No. 5094/53. Class 103 (2). [Also in Group XXX] A railway transport container provided with road wheels has two axially-adjustable, struts or jacks provided upon each longitudinal side of the container, each jack being hinged by one end to the underside of the container chassis about an axis transverse to the longitudinal axis of the container. As shown, the container is provided with cross-beams 1 on each side of which is fixed a forked bracket 2 carrying a pivot-pin 3. A jack journalled on the pin comprises a hollow cylindrical body 4 within which is a slidable foot 8 carrying a foot-plate 12. The body 4 is screw-threaded on the outside and is formed with slots 5 through which extend two rods 6, 7 fixed to the foot 8 and located one on each side of a nut 9 threaded on the body 4. The nut has levers 10, 11, whereby it may be rotated to vary the effective length of the jack. By operation of all the jacks the road wheels of the container, mounted on a railway vehicle, can be relieved wholly or partly of load. The foot-plate 12 has a perforation 13 for engagement by a hook 14 when the jack is to be held in an inoperative substantially horizontal position. The jack may be locked when in the operative vertical position by a locking member 16 mounted on a pivot-pin 15 and comprising a central portion formed with an opening 17 and two web portions 16a, these portions straddling one of the levers 10, 11 which projects through the opening 17. The locking member is itself locked in place by the engagement with a projection 18 thereon of a lock arm 19 mounted on a pivot-pin 20. The locking member 16 and lock arm 19 may be held in inoperative positions by means of a stirrup 21. The container may be anchored to a railway vehicle by chains extended at the sides of the container or may be anchored by chains connected to the sides of the container and extending to the ends of the container to adjacent fixtures on the vehicle. Specification 679,656 is referred to.
Patent GB-310598-A (GB)
Title: Water heater
IPC: F24H1/20
Filed: 1928-02-18
Abstract: 310,598. Wootton, G. Feb. 18, 1928. Block-form boilers. -A convoluted tube 4 of good heat-conducting material is fitted vertically within a water container to act as a flue tube for a single gas burner 9 over which the lower end of the tube is directly disposed so that the flame is within the tube. Only a short portion 5 of the tube may be convoluted. Specification 17304/04 is referred to.
Patent GB-915052-A (GB)
Title: Improvements in or relating to electrical insulators
Inventor: SWEETLAND ARTHUR GEORGE
IPC: H01B17/32
Filed: 1958-02-18
Abstract: Coverings of fluorine-containing polymers or copolymers are applied to rods or tubes of resin-bonded glass-fibre by coating the surface of the rod or tube with a solution or dispersion of the polymer and moderately heating the coated rod or tube to drive off the solvent or dispersion medium.  A porous coating deposited from a dispersion may be converted into a moisture-impervious skin by sintering (e.g. if p.t.f.e. sintering is effected at 430 DEG -450 DEG C., and if p.c.t.f.e. at 360 DEG -380 DEG C.), preferably by the use of infra-red heating.  The covered rods or tubes are for use as electrical insulators (see Group XXXVI).
Patent GB-271559-A (GB)
Title: Combination size reducers, heel grips and linings for boots and shoes
IPC: A43B23/28
Filed: 1926-02-24
Abstract: 271,559. Bennett, G., and Bennett, G. E. Feb. 24, 1926. Linings; heel friction pads.-A combined heel grip and lining which also acts as a size reducer comprises a, piece of leather B folded over a very resilient rubber cushion E to which it is attached by solution. A line of stitching C produces a top flange D for attachment to boots and shoes either by solution or by sewing. The lower part B acts as a lining. Specifications 179,596 and 193,776 are referred to.