baber/WOPTO huggingface dataset:
Patent GB-1414211-A (GB)
Title: Rotating mechanism for the jib arm of a mining machine
IPC: E21C35/06
Filed: 1973-06-29
Abstract: 1414211 Mining machine VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE - ALPINE MONTAN AG 29 June 1973 [30 June 1972] 31056/73 Heading E1F A rotating mechanism, for example in a mining machine, comprises a swivel head I to which a jib arm is mounted for rotation about an axis 7, and a member 2 on which the swivel head is mounted, for rotation about an axis 3 substantially perpendicular to the axis 7, by means of a radial bearing 24 and a thrust bearing 18 capable of taking up axial load in two opposite directions and whose inside diameter exceeds the diameter of the radial bearing. The thrust bearing comprises an annular plate bolted to the member 2 and disposed between surfaces 20, 21 of the swivel head. The radial bearing 24 is self-aligning, and is axially spaced from the thrust bearing and close to driving gear 22. The diameter of the plate 18 is preferably between a quarter and a third of the largest overhang of the jib arm.
Patent GB-841279-A (GB)
Title: Process for recovering polymer from aqueous dispersion thereof
IPC: C08J3/16
Filed: 1958-09-30
Abstract: Water-soluble polymers of polymerisable compounds containing the F/1 group may be recovered from aqueous dispersions by processes comprising blending the aqueous dispersion with sufficient precipitating agent to reduce the viscosity of the dispersion but not to precipitate the polymer, diluting the blend thus prepared with sufficient precipitating agent to precipitate the polymer in the form of fine discrete particles, separating the precipitated polymer from the residual fluid and drying the separated polymer, said precipitating agent being at least partially soluble in water, inert to said polymer and in which said polymer is substantially insoluble and an aqueous solution of said precipitating agent being a non-solvent for the polymer at a concentration up to and including saturation.  Specified polymers are those of acrylamide, acrylic acid and its alkali metal and ammonium salts, and those containing vinyl alcohol and vinyl sulphonate units.  Minor amounts of copolymerised vinylidene compounds, e.g. styrene and substituted styrenes, acrylonitrile and a  -alkyl and a  -chloroacrylonitriles, and acrylic and methacrylic esters, may be present and many suitable comonomers are listed.  The precipitating agent may be a ketone, alcohol, ester, ether, dioxane, morpholine, glycol ether or glycol ether ester, and examples of suitable agents are listed.  Examples describe the precipitation of polyacrylamide with (1, 11 and 13) methanol, (12) acetone and (14) isopropanol; acrylamide-diallyl dimethyl ammonium chloride copolymers with (8) methanol, (9) acetone and (10) 2-B alcohol; acrylamide-acrylic acid copolymers with (15) methanol, (16) acetone and (17) isopropanol; sodium polyacrylate with (6) methanol and (7) acetone; and polyvinyl alcohol with (2 and 5) acetone, (3) isopropanol and (4) methanol. The precipitating agents used in the diluting and precipitating steps may be the same or different, and during the precipitating step an electrolyte, e.g. allkali metal hydroxides or salts, or mineral acids, may be added.  The polymer may be separated by filtering, decanting or centrifuging, may be washed with additional quantities of the precipitating agent, and dried in an oven, hot air heater or drying kiln.
Patent GB-428458-A (GB)
Title: Process of and apparatus for the production of beryllium
IPC: C22B5/06
Filed: 1933-11-08
Abstract: 428,458. Induction furnaces. WEMPE, B., 21, Grolmannstrasse, Charlottenburg, Berlin. Nov. 8, 1933, No. 31161. [Class 39 (iii)] [See also Groups II and XII] A rotary furnace in which beryllium compounds are re duced out of contact with air by metals such as the alkal metals, alkaline earth metals &c. comprises a tube 16 inductively heated by a water - cooled coil. The beryllium compound enters by a conduit 9 and through a cooled top 11 into a reaction space 10 formed by the molten reducing metal 13. The outer cover 12 may be formed of graphite, metal or sintered corundum. The furnace is lined by melting the lining material in the furnace rotating the furnace, and allowing the material to solidify during rotation. The lining may be more or less refractory than the reacting substances.
Patent GB-890830-A (GB)
Title: A glass sealed type semiconductor device
IPC: H01L23/04
Filed: 1960-09-09
Abstract: 890,830. Semi-conductor devices. NIPPON ELECTRIC CO. Ltd. Sept. 9, 1960 [Sept. 11, 1959], No. 31170/60. Class 37. At least part of a metal electrode in a glass sealed semi-conductor device is made of a thermally deformable, inhomogeneous material so that as the electrode cools after the glass softening step in the manufacture of the device it is urged into contact with a semi-conductor element. The electrode may comprise two strips of metal having different coefficients of expansion, or may be an alloyed strip or wire having different coefficients of expansion at two sides thereof. Electrode 2 is arranged so that it remains in contact with the semi-conductor element 1 when the maximum temperature is reached. On cooling the electrode deforms so as to increase the pressure between itself and element 1. The invention may also be applied to pointcontact diodes by providing the electrode with a pointed portion near one end (Fig. 4, not shown), or to transistors (Fig. 5, not shown).
Patent GB-1022221-A (GB)
Title: Soldering aluminium or aluminium alloys
Inventor: POLERECZY GABOR
IPC: B23K35/36
Filed: 1962-08-14
Abstract: A soft soldering process for aluminium and aluminium based alloys comprises applying to the surfaces a solvent free soldering medium comprising reaction compounds of resins with carbonates, oxides or hydroxides of metals below aluminium in the electromotive series and/or salts of such metals with fatty acids containing more than 15 carbon atoms in the chain, or mixtures of such salts.  The soldering medium may consist of a paste of copper resinate containing a fatty acid and a cadmium stearate and containing more than 50% organic metal salts.  A further example is a medium consisting of molten beeswax and zinc carbonate. The soldering metal used may contain by weight 20-30 parts tin, 15-25 parts lead, 8-20 parts zinc.
Patent GB-1124537-A (GB)
Title: An extrusion press for sheathing cables
IPC: B21C29/00
Filed: 1966-07-12
Abstract: 1,124,537. Extruding cable sheaths. FELTEN & GUILLEAUME CARLSWERK A.G. 12 July, 1966 [31 Aug., 1965], No. 31233/66. Heading B3P. An extrusion die 2 has its outer face 9 covered with a layer 10 of heat insulating material. The die is used in an extrusion press for sheathing cables with aluminium and like metal, wherein the extruded sheath 3 is cooled by water jets 8. The outer frusto-conical end of the die 2 is covered with the heat insulating material, to prevent overcooling of the die. The layer may be an asbestos washer stuck to the die or pressed against it by the cooling tube 4 which is biased axially by springs 6.
Patent GB-1469663-A (GB)
Title: High intensity shot peening
IPC: B21D31/06
Filed: 1974-07-15
Abstract: 1469663 Altering physical properties MINNESOTA MINING & MFG CO 15 July 1974 [16 July 1973] 31333/74 Addition to 1,412,360 Heading B3V The peening flap of the parent Specification 1,412,360 is modified by mounting the metal support 43 for the peening particles 48 at an angle of 25-80 degrees between the supporting face and the length of the strap 42. Preferably the angle is 40-70 degrees, e.g. 45 Œ 5 degrees or 65 Œ 5 degrees.
Patent GB-433287-A (GB)
Title: Improvements in water supply devices for bath tubs
IPC: E03C1/242
Filed: 1933-11-10
Abstract: 433,287. Supply-fittings for baths. BERKEL, W. A. VAN, Avenue Rambert, Clarens, Vaud, Switzerland. Nov. 10, 1933, Nos. 31353 and 31354. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 4, 1934]. [Class 26] [See also Groups XXI and XXIX] A cut-off supply device for baths comprises a chamber 10 accommodating a loose valve-disc 16 normally supported in the position shown by a leg 17 and having attached thereto a float 11. In order to prevent water-shocks arising on the closing of the valve, the supply-conduit to the chamber is so contrived that annular passages are provided as at 5, or a flexible pipe may conduct the water therethrough, or it may be provided with helically-wound strips. The float is protected by a sheet 19 and is disposed in a housing 9 having an aperture 12, and the chamber 10 has a valveseating 14, a guide plate 13 and a draining-hole.
Patent GB-757348-A (GB)
Title: Power transmission means without connecting rods between a rotating shaft and pistons constantly urged towards said shaft, and its applications
IPC: F16H21/36
Filed: 1953-11-12
Abstract: 757,348. Eccentrics. SPLADIS SOC. POUR L'APPLICATION D'INVENTIONS SCIENTIFIQUES. Nov. 12, 1953 [Nov. 20, 1952; Dec. 24, 1952], No. 31353/53. Class 122(1) [Also in Groups XXVII, XXVIII and XXIX] In a radial cylinder pump or motor, the pistons P are actuated by an eccentric 4 surrounded by a ring 6, balls or rollers B being arranged betwen the ring 6 and the ends of the pistons and so guided that they roll on the ring 6 and the ends of the pistons. Fig. 1 shows the balls B located in openings in a cage 7 that is gyrated by being mounted on an eccentric having a throw equal to half that of the eccentric 4 and also guided by pins associated with circular guides. In an alternative arrangement, the cage 7 may have an outer and inner set of teeth guided in recesses in the pump housing and ring 6 respectively. Fig 10 shows an arrangement wherein the cage 7 is eliminated and the balls are guided in recesses 24 in the housing 1. The balls may be offset from the axes of the pistons or where rollers are used, they may be tapered or the axes of the pistons may be inclined to the radial direction.
Patent GB-501777-A (GB)
Title: Improvements in or relating to gun barrels for ordnance
IPC: F41A21/02
Filed: 1937-11-15
Abstract: 501,777. Ordnance. TRAVERSI, R. A., and STUDI E BREVETTI GRUPPO CAPRONI. Nov. 15, 1937, No. 31356. Convention date, Nov. 13, 1936.. (Class 92 (ii)] Gun barrels are formed by combining an outer tube 1, a lining tube 2 and an assembly of annular discs 3 fitted between the lining and the inner tube 4. In the form shown, the discs are stepped and spaces 6 are provided for expansion. The inner tube is formed by autofrettage, that is subjected to internal pressure to cause overstrain, the tube being left in a state of stress when the pressure is removed. Circumferential projections 5 on the inner tube engage corresponding recesses in the discs. The inner tube may be slotted longitudinally. The lining tube 2 is formed of metal of low modulus of elasticity compared with the outer tube 1.
Patent GB-608505-A (GB)
Title: Improvements in or relating to apparatus for preventing the accumulation of ice on a surface exposed to ice-forming conditions in air-flow
IPC: B64D15/16
Filed: 1945-11-21
Abstract: 608,505. De-icing equipment for aircraft. GOODRICH CO., B. F. Nov. 21, 1945, No. 31370. Convention date, Dec. 29, 1944. [Class 4] An inflatable de-icing shoe comprises three series of inflating tubes, the middle series being provided in that portion of the shoe covering the leading edge of the aerofoil, and the others in those portions covering the upper and lower surfaces to the rear of the leading edge, the middle series of tubes being larger than the others. In the form shown in Figs. 3, 8 and 9, the middle series of tubes 36 decrease in size from the centre line, while the smaller series of tubes 37 of the rearwardly extending portions are of the same size. The tubes of each series are preferably interconnected, in order that they may be inflated simultaneously. The shoe is made of rubber-like material, incorporating a fabric reinforcement which is extensible in the chordwise direction. Longitudinally extending ribs are provided on the undersurface of the shoe, to provide air channels 48 which communicate with the exterior for venting purposes. In the alternative form shown in Fig. 11, the venting channels 48 are provided only over the leading edge portion 62 of the shoe, securing means such as bolts passing through openings in the marginal portions 68. The undersurfaces of the rearwardly extending portions of the shoe are smooth, in order that they may be adhesively secured to the aerofoil surface.
Patent GB-672639-A (GB)
Title: Improvements in or relating to systems for amplifying, generating or otherwise operating upon oscillations of very high frequency and to electron-discharge tubes for use therein
IPC: H01J25/02
Filed: 1946-10-22
Abstract: 672,639. Thermionic valves, magnetrons. PHILIPS LAMPS, Ltd. Oct. 22, 1946 [March 1, 1943; Sept. 3, 1943], Nos. 31372/46. and 31373/46. Class 39 (i). An electron discharge tube for amplifying or generating very high frequency oscillations, comprises a pair of parallel electrodes constituting opposite walls of a hollow wave-guide, not greater than a half wavelength long if the waveguide is closed, and not greater than a quarter wavelength long if it is open ended; the cathode constitutes one of, or is parallel to, the parallel electrodes, is coextensive with them, and is emissive over its whole surface. The relatively large cathode enables high powers to be obtained. Fig. 1 shows the application to a triode where wave-guides are constituted by the cathode 6 and the control grid 5, and by the control grid 5 and the anode 4. The input and output of the oscillatory voltages may be effected through Lecher lines 1, 3, or through hollow wave-guides or coaxial lines. The input and output points may be located so as to produce any desired difference of phase. The invention is applicable to braking-field or frequency - changing systems, and to diodes, tetrodes or pentodes. As applied to a magnetron, a two-electrode system is rolled up to form a septate coaxial wave-guide 4, 6, Fig. '4. The electrode 6 may be an accelerating grid and made of gauze, the cathode consisting of a number of circularly distributed filaments, or of a coiled filament, inside the electrode 6. The septum 9 may be constituted by a number of spokes. Preferably the electron transit-time is so adjusted that H01-type oscillations are produced. The Specification as open to inspection under Sect. 91 comprises also a triode with coaxial electrodes. This subject-matter does not appear in the Specification as accepted.
Patent GB-265551-A (GB)
Title: Distributing pump for lubricant and other viscous substances in variable and determined quantities
IPC: F04B9/02
Filed: 1926-12-10
Abstract: 265,551. Muller, J. Feb. 5, 1926, [Convention date]. Piston apparatus for discharging receptacles. -Apparatus for supplying lubricant direct to parts to be lubricated and for filling lubricators, comprises a cylinder 6 of glass &c. into which the lubricant is introduced when the piston 4<1> is at the bottom of the cylinder and the end 7 has been removed. When the piston is raised by turning a screwed rod 21 engaging a nut 19 on the piston rod 18, the lubricant passes through a conduit 10 and a flexible tube &c. to a cock 47 arranged at the end of a graduated cylinder 5 of glass and having four ways 25 which may be connected by flexible tubes &c. to the points to be lubricated or to the lubricators to be filled. The lubricant entering the cylinder 5 depresses a piston 33 against the pressure of a spring 44. The piston may be operated to deliver the lubricant from the cylinder 5 by means of a screwed rod 37 engaging a nut 42 against which the spring 44 abuts. A pointer moving over a scale indicates the amount delivered. The piston 4<1> may be operated by pawl and ratchet gear instead of the screw 21.
Patent GB-955559-A (GB)
Title: Improvements in or relating to electronically-controlled timepieces and tuning fork structures therefor
IPC: G04C3/10
Filed: 1961-08-31
Abstract: 955,559. Reciprocating motors. BULOVA WATCH CO. Inc. Aug. 31, 1961 [Jan. 19, 1961], No. 31417/61. Heading H2A. [Also in Divisions G3 and G5] A tuning fork structure, for an electronicallycontrolled time-piece comprises a pair of tines 15, 16 connected by a base 17 which has an integral mounting stem 18, the junction of the stem 18 and base 17 being constructed at 18a to provide a resilient spring mounting, the stem 18 extending upwardly from the base and being situated between the tines. Each tine carries a movable magnetic element of a transducer 21 comprising the magnetic element formed by a cylinder 21a having a permanent magnet rod 21b supported coaxially therein to define an air gap wherein a stationary coil is mounted, the rod and coil being correspondingly tapered to accommodate the greatest number of coil turns at a position of maximum flux density. An electronic drive circuit of the tuning fork comprises a transistor 39 of which the base electrode B is coupled through an R-C bias network 40-41 to one end of a phasesensing coil 23 associated with the transducer of one tine 15, the other end of this coil being connected to one end of a drive coil 22 in series with a drive coil 26 of the other transducer which is led to the collector electrode C of the transistor. The emitter electrode E goes to a battery 30 which connects with the junction of drive coil 22 and phase-sensing coil 23. The polarity shown is for a Germanium PNP type junction. A capacitor 42 across the phasesensing coil through battery 30 shorts out parasitic currents. In practice the back e.m.f. in the drive coils has a peak valve about 10% less than battery voltage so that the amplitude of the tines is controlled towards a desired value and within limits which normally do not affect the drive to a time train 12. The fork is tunable by a rotatably adjustable mass 31 carried with each magnet from the ends of the tines. As further disclosed, in a circular timepiece electric components are mounted in sub-assemblies on opposite sides of the tuning fork, the tines being bowed inwardly to allow room for assembly.
Patent GB-922961-A (GB)
Title: A feeding device for the tool carriages of automatic lathes
IPC: B23Q1/68
Filed: 1960-09-13
Abstract: 922,961. Lathe details. ZARODY PRESNEHO STROJIRENSTRI GOTTWALDOV, NARODNI PODNIK. Sept. 13, 1960 [Sept. 14, 1959], No. 31436/60. Class 83 (3). A feeding device for the tool-carriages of multi-spindle automatic lathes adapted to give a quick approach, slow feed and rapid return, comprises two shafts 2, 3, Fig. 1, with their axes spaced apart a distance B, Fig. 2. Shaft 2 is rotated by a high-speed cam (not shown) and has an eccentric shoulder on which a sleeve 4 is rotatably mounted. The other shaft is fixed to the machine and carries a concentric sleeve 5. A lug on the sleeve 4 is connected by a pin to a link 10 which is fastened by a further pin 8 to the sliding tool-carriage 9. A second lug, diametrically opposite the first lug, on the sleeve 4 has a pin 7, the overhanging end of which carries a slide block 11 fitting a guideway in a lug on the sleeve 5. A second lug on this sleeve has a pin connection with a link 13 which is moved by a slow feed cam (not shown). Fig. 2a shows the start of an approach movement of the carriage 9. Rapid approach is effected by the eccentricity of the shoulder on the shaft 2. Slow feed is then obtained by movement of the rod 13 transmitted to sleeve 4 through the slide block coupling. Both the cam movements then operate to bring the device rapidly back to its initial position.
Patent GB-1181028-A (GB)
Title: Improvements in or relating to a Mechanical Power Transmission System
Inventor: SOLOVIEV PAVEL ALEXANDROVICH
IPC: F16H1/22
Filed: 1968-07-02
Abstract: 1,181,028. Helicopter rotor drive. P. A. SOLOVIEV, I. P. EVICH, G. P. KALASHNIKOV, L. I. KANTOR, and S. N. ZAMOTIN. 2 July, 1968, No. 31465/68. Headings B7G and B7W. [Also in Division F2] In a geared power transmission, particularly for twin engines, single rotor, helicopters, two nested shafts 12, 11 driven simultaneously by an input shaft (2) respectively drive, through bevels 15, 24; 16, 25, spur pinions26, 27 meshing an output spur wheel 33. As shown, the output wheel 33 is driven by parallel twin gas turbine engines (1), through two pairs of shafts 12, 11. and is followed by a planetary reduction unit, not shown. A tail rotor and a fan are driven from the output wheel 33 through shafts 35, 39. Each engine drives its respective pair of shafts 12, 11 through a barrel roller coupling (5) permitting limited misalignment, a shaft (4), a one-way clutch (9) permitting autorotation landing or continued flight with only one engine running, and a mechanism, Fig. 6 (not shown), equally distributing torque between the shafts 12, 11.
Patent GB-520464-A (GB)
Title: Improvements in or relating to apparatus for the washing and sterilising of vessels
IPC: A61L2/06
Filed: 1938-10-31
Abstract: 520,464. Washing and cleaning bottles &c. GREVILLE, E. G., and HICKMAN, F. C. Oct. 31, 1938, No. 31494. [Class 138 (i)] Apparatus for cleaning and sterilizing hollow vessels such as sputum mugs, comprises a tank 1 with nozzles 8 for delivering cleansing fluid to the mugs (not shown) but carried in frames 10 pivoted at 15 so as to present the mouths of the vessels to the nozzles 8. The frames 10 are operated by a handle 18 with arms 17 which can be raised and lowered. Fluid is controlled by a hand cock. The tank 1 can be heated to sterilize the effluent which can then be safely discharged by a valve pipe 3.
Patent GB-820881-A (GB)
Title: Improvements in or relating to bearing assemblies applicable to roller conveyors
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: F16C13/02
Filed: 1956-10-17
Abstract: 820,881. Ball-bearings. FISHER & LUDLOW Ltd. Oct. 1, 1957 [Oct. 17, 1956], No. 31535/56. Class 12 (1). In a method of assembling a ball-bearing 12 within a deformable sheet-metal hub 11, the bearing 12, consisting of an inner member 13, balls 15, a flanged outer race 16 and an end ring 18, is disposed in the hub 11, as shown in Fig. 1, and axial pressure is then applied to the bearing so that the hub 11 decreases in diameter and deforms the outer race 16 to the shape shown in Fig. 2, thereby retaining the bearing 12 in position. Specification 820,882 is referred to.
Patent GB-1348705-A (GB)
Title: Process for making concentrated silica sols
IPC: C01B33/148
Filed: 1971-07-06
Abstract: 1348705 Silca sols E I DU PONT DE NEMOURS & CO 6 July 1971 [14 July 1970] 31585/71 Heading C1A Concentrated silica sols are prepared by a process in which water and a soluble sodium salt are removed from a starting aqueous silica sol. having a pH from 9 to 11, the starting sol containing from 1 to 40% by weight of silica particles having an average diameter of from 5 to 50 millimicrons and the sodium salt in concentration at most 0À25 N, the process comprises adjusting the sodium salt concentration to from N=0À005 to N=0À25-0À0065 C, where N is the normality of the sodium salt in the sol and C is the concentration of silica in grams per 100 millilitres of the solid then/before and/or while concentrating the sol by filtering an aqueous solution of the sodium salt from the sol using a microporous membrane having pores of smaller diameter than the silica particles until the desired concentration of silica in the sol is reached. Preferably the sodium salt concentration is adjusted by filtering an aqueous solution of the sodium salt from the starting sol using the microporous membrane and adding water to the sol to maintain the volume substantially constant. The sodium salt may be replaced at least in part by a potassium, lithium or ammonium salt, a solution containing potassium, lithium or ammonium ions being added during the filtration and N representing the combined normality of the sodium and replacement salts.