baber/WOPTO huggingface dataset:
Patent GB-883986-A (GB)
Title: Method for producing high strength control rods for nuclear reactors and control rods produced thereby
IPC: G21C21/18
Filed: 1959-03-13
Abstract: 883,986. Alloys; granulating metals; heat treating. UNITED STATES ATOMIC ENERGY COMMISSION. March 13, 1959 [March 31, 1958], No. 8750/59. Classes 72, 82(1) and 82(2). [Also in Groups XXII and XL(a)] A control rod for nuclear reactor is formed of a pressed and sintered body of superficiallyoxidised particles of the silver-base alloy of Specification 850,999. The oxygen content of the body is suitably 0À1-0À3% by weight. Fig. 1 shows an apparatus for forming the oxidised metal powder. Molten alloy flows from a nozzle 14 and the stream is atomized as it leaves the nozzle by a water spray 16 produced by a whirling nozzle 22. The oxide coatings on the metal particles are formed during cooling of the powder. The oxidised powder is dried and may be heated to 300-600C. in an oxidising atmosphere to promote further oxidation. The powder is then sieved and 100 mesh or smaller particles are hot pressed or pressed and sintered to form a billet which is extruded to the required cross section. The extruded member is preferably annealed at 930 to 1295F. for one to four hours.
Patent GB-549935-A (GB)
Title: Improvements in or relating to optical projection apparatus
IPC: G03B23/10
Filed: 1941-07-11
Abstract: 549,935. Optical-projection apparatus KODAK, Ltd. July 11, 1941, No. 8799. Convention date, Aug. 2, 1940. [Class 97 (i)] In apparatus . comprising separate image elements on a carrier having a large mass, the positioning errors as each element is brought into projection position are corrected by means of an optical compensator driven-by the carrier; the compensator may consist of a rotated plane parallel -glass block. As described, the compensator is applied to apparatus in accordance with Specification 549,934, wherein each carrier 44 is annular, and the ,image elements 49 comprise transparencies cemented to glass plates each secured to the carrier by a separate holder 48 having gear teeth 50. The compensator is a plane parallel glass block 86 carried in a socket 87 secured to a hollow shaft 88 driven by a pinion 90 from the teeth 50; the numbers of teeth on the pinion and on each holder ,are equal so that the compensator makes one revolution for each image shift. A toothed sleeve 94 on the shaft 88 is controlled by a torsion-spring wire 96 within the shaft to avoid backlash between the gear teeth, and the shaft 88 is carried eccentrically in a rotatably adjustable sleeve so that the gear teeth may be meshed as desired.
Patent GB-1221774-A (GB)
Title: Improvements in and relating to textile yarn beaming machines
Inventor: MACKIE JOHN KAY PRINGLE
IPC: D02H3/00
Filed: 1967-02-23
Abstract: 1,221,774. Beaming machine. JAMES MACKlE & SONS Ltd. 12 Feb., 1968 [23 Feb., 1967], No. 8801/67. Heading D1M. An empty beam placed on rollers 16 is lifted by a hydraulic ram 24 acting through levers 18, and engaged by a head stock 6 and a tail stock 8 moved along rails by rams 106, 108. During winding, the rollers 16 serve as presser rollers. The beam is driven by a hydraulic motor 28 supplied by a variabledisplacement pump whose output is controlled to keep the yarn speed constant. The speed is sensed by a tachometer driven by nip rollers 48 through which the warp is fed to the beam. When the yarn speed changes, a disc 56 is turned by the tachometer 52 to bring one or other of two slots 58, 60 opposite an outlet port 78 or 80; corresponding inlet ports on the opposite side of the disc receive low pressure compressed air from an inlet 68. Each outlet 78, 80 leads to a pneumatically-operated valve feeding high pressure air to a pneumatic motor, which rotates one way or the other depending on which valve is opened; the motor adjusts the delivery of the pump supplying the beam driving motor 28. Restrictors in the valves limit the air flow and hence the acceleration of the beam motor, especially when standing from rest; the pump is automatically adjusted to zero delivery whenever the beam drive is stopped. The desired yarn speed can be set by swinging the head 64 about the axis of the disc 56.
Patent GB-630915-A (GB)
Title: Improvements in or relating to typewriter ribbons and the like
IPC: B41J31/04
Filed: 1947-04-01
Abstract: A typewriter ribbon or the like is made of woven fabric formed of high tenacity regenerated cellulose yarns that are made by stretching and later saponifying yarns of an organic ester of cellulose, the fabric being shrunk by treating it with an aqueous solution of an alkali metal hydroxide, and then impregnated with a ribbon-inking composition.  The inked ribbon may be used in a cash register, adding-machine, or similar machine.  A 4-12 per cent solution of caustic soda at 15-25 DEG  C. may be used and the fabric may be immersed for 2-60 minutes, and then rinsed, scoured, and dried. Alternatively, the fabric may be padded with the alkali solution. The fabric may be woven as a ribbon of the required width, or a wide fabric may be subjected to the shrinking treatment and then slit to the desired width.  The edges of such a slit ribbon may be coated with gums, resins, cellulose esters, or cellulose ethers, applied as a solution, to prevent ravelling. Shrinking may be effected after slitting a wide fabric into ribbons.  Wide or narrow fabric may be woven from the stretched cellulose ester yarns and saponification may be conducted on the wide or narrow fabric.  Yarns which have been stretched to 2000 per cent of their original length may be used. Organic or inorganic alkaline substances in aqueous or alcoholic solutions may be used for the saponification and the temperature may be 20-100 DEG  C.  Sodium hydroxide of 0.1-5.0 per cent strength may be used, if desired with sodium sulphate or acetate.  In an example, a narrow ribbon is woven of high tenacity regenerated cellulose yarns obtained by saponifying stretched cellulose acetate yarns. The ribbon is shrunk by treatment with 8 per cent caustic soda solution, and washed and dried.  The ribbon is then impregnated with typewriter ink.
Patent GB-1083161-A (GB)
Title: Improved shuttlecock and method of manufacture therefor
IPC: A63B67/18
Filed: 1964-03-03
Abstract: 1,083,161. Shuttlecocks. B. E. PAGAN. March 2, 1965 [March 3, 1964], No. 8905/64. Heading A6S. A plastics shuttlecock has a skirt comprising a stem part 3 formed from a plastics material which is different from the plastics material forming the lattice part 4. The stem part has extensions 7 for attachment of the cap 1.
Patent GB-879961-A (GB)
Title: Automatic adjusting device for a distributor of pulverulent material under pressure
IPC: B65G53/66
Filed: 1960-03-15
Abstract: 879,961. Pneumatic conveyers. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. March 15, 1960 [March 21, 1959], No. 9041/60. Class 78 (1). A distributer 1 for pulverulent material operating under variable pressure has a regulating pressure gauge 12 connected with the conveying pipe 3 at a point ahead of the port 7 through which the material enters and means whereby the regulator is adapted to act on valves 9, 11 inserted respectively in the circuit setting the distributer under pressure and in the blow-off circuit.
Patent GB-592173-A (GB)
Title: Selenium rectifiers and method of production
IPC: H01L21/105
Filed: 1944-05-12
Abstract: 592,173. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. May 12, 1944, No. 9083. Convention date, Aug. 21, 1943. [Class 37] The uni-directional conductivity of a dry selenium rectifier is improved, in manufacture, by depositing a blocking layer of selenium dioxide on to the selenium film in an atmosphere of carbon dioxide and moisture. A counter electrode is applied within a period preferably less than 5 seconds, and not exceeding 30 seconds. In the example shown, carbon dioxide and moisture are passed through the inlet 5 into the lower part of the hood 6 which encloses a furnace 10 by means of which the selenium dioxide in a crucible 11 is heated to a temperature of 400-500 C., the vapour thus formed, condensing on the rectifier discs 7 situated above the crucible. Following the application of a counter electrode to the selenium layer, electro-forming of the rectifier assembly is carried out preferably in a chamber having an atmosphere of carbon dioxide and moisture.
Patent GB-469342-A (GB)
Title: Improvements in and connected with paper-making
IPC: D21F11/00
Filed: 1936-03-26
Abstract: 469,342. Reinforced paper. KLEIBAUMHUTER, H., and KLEIBAUMHUTER, P., (trading as BAUMHUTER, P., [Firm of]). March 26, 1936, No. 9084. [Class 96] Separate applications of fluid paper pulp are made to one or more thin layers of unspun, undivided hard fibres, e.g. sisal, hemp, manila, jute, oakum, &c. 55, to form reinforced paper for wrapping &c. Fluid pulp is applied, e.g. at 48, to a travelling screen 45, and also on to, or through a " cage-drum " 49, the composite web passing off the screen 45, at 60. The actual paper thickness may be less than that of the fibres which are, however, encased therein. Specification 446,049 is referred to.
Patent GB-275692-A (GB)
Title: Improvements in brush making machinery
IPC: A46D3/06
Filed: 1926-04-07
Abstract: 275,692. Briton Brush Co., Ltd., Page, E. B., and Hovell, H. E. April 7, 1926. Drilling brush stocks.-A horizontal table adapted to be rotated at intervals on a vertical axis through a predetermined angle is provided with brush stock holding devices which, when the table is at rest, are moved in steps about horiontal and vertical axes to position the stocks for operation thereon of drilling and filling tools. As shown, the movement of the stocks is controlled by a cam shaft 10 driven intermittently by worm gearing from a worm wheel 11 on the shaft of the bristle-filling machine, which is driven bv an electric motor. The table 2 is driven intermittently by worm gearing from a second electric motor. The cam 15 acts upon a roller 17 to raise a sleeve 18 and a platform 19 whereby spindles 20 are moved upwardly and cause anvils 7 carrying the brush stocks to move about horizontal axes 23. Movement about vertical axes is effected by a cam 16 acting on a roller 25 to actuate a stem 28 carrying an archimedean screw 29 which engages a spider 30 pivoted at 31 to the stock-holders 5. The two motors A, B for driving, respectively, the cam shaft 10 and the table 2 are connected as shown in Fig. 5, so that the starting of one motor occurs simultaneously with the stopping of the other. A contact wheel d rotating with the shaft 10 carries a contact d<1> in circuit with the main line L<1> and an element c<1>. At the end of a revolution of the shaft 10 the contact d<1> engages a brush contact d<2> and at the same time the element c' engages an element c<2> to open a switch c<3>. The table 2 rotated by the motor B is provided with contacts g<2> for engagement with brush contacts g<1> and elements k<1> for engagement with an element k<2> to open a switch k<3>. Electromagnetic switches e and h are provided as shown. When the motor M is momentarily closed the motor A is actuated to rotate the shaft 10, which after a complete revolution opens the circuit of the motor A and closes the circuit of the motor B whereby the table is caused to rotate. When the table has completed a quarter of a revolution the circuit of the motor B is opened. The operations may be repeated by again closing the switch M. Means may be provided for continuing the operations indefinitely so long as the switch M is kept closed.
Patent GB-705129-A (GB)
Title: Improvements in or relating to injectors for liquids
IPC: F02M61/12
Filed: 1952-04-10
Abstract: 705,129. Spray-producers. TAVOLA, B. April 10, 1952 [April 10, 1951], No. 9175/52. Class 69 (3). [Also in Group XXVII] A liquid injector, e.g. an internal-combustion engine fuel injector, has a valve 14 operated by liquid pressure and guided in its axial path by roller bearings 28, 29, the end of the valve being sealed to the injector body by a resilient washer, e.g. of synthetic rubber. The washer 24 is gripped at its edges between a flanged member 25 and a screwed bush 22 and its centre portion is gripped between a flange on the valve stem 14 and the valve spring abutment 27 which engages a reduced portion of the valve stem passing through the washer.
Patent GB-954869-A (GB)
Title: Zirconium-molybdenum-nickel alloys for indirectly heated cathodes
IPC: H01J1/26
Filed: 1962-03-09
Abstract: Indirectly-heated thermionic valve cathodes are made of an alloy consisting of .Zr.0.03-0.5% .Mo.0.25-6.5% .Ni.the remainder The alloy may also contain Al up to 0.1%, Mg up to 0.07% and/or Si up to 0.07% and may include (as impurities) Fe, Mn, C, Co, Cu up to 0.1% each.
Patent GB-1262107-A (GB)
Title: Improvements in or relating to counting devices
Inventor: NEILD DONALD WILLIAM
IPC: G04F7/06
Filed: 1969-02-20
Abstract: 1,262,107. Road toll charging systems. NATIONAL RESEARCH DEVELOPMENT CORP. 13 Feb., 1970 [20 Feb., 1969], No. 9307/69. Headings G4D and G4T. A control unit 11 on a vehicle has two ferritecore aerials responsive respectively to one frequency when the vehicle enters a zone and to a second frequency on leaving the zone. The unit 11 operates a moving coil 9 in one or other direction to operate an escapement whereby a clockwork motor 5 steps a counter. At each step of the counter a disc 16 rotates and light from a lamp 17 passes through a hole in the disc to energize a photo-cell 19 which drives an indicator 24 through a quarter-turn. If the system is operating correctly red R or yellow Y is visible from outside the vehicle when it is respectively inside or outside a metering zone. The detector 11 may be optical.
Patent GB-851590-A (GB)
Title: Improvement in the manufacture of organic phosphorus compounds
Inventor: FORD-MOORE ARTHUR HENRY
IPC: C07F9/165
Filed: 1954-03-30
Abstract: Organic phosphorothiolates of the formula (RO)2P(=O)SR1, in which R and R1 are organic radicals, are made by converting a simple trialkyl phosphite ester by tranesterification with a selected aliphatic alcohol to produce a mixed trialkyl phosphite ester containing a selected ester alkyl group, (which may be a substituted alkyl group), separating the ester and treating it with elemental sulphur to produce a trialkyl phosphorothionate of the formula (RO)2P(=S) SR1 which is isomerised to produce the corresponding trialkyl phosphorothiolate.  The transesterification may be carried out with the aid of a catalyst, e.g. diethyl hydrogen phosphite.  The isomerisation may be effected by heating in the presence of a catalyst, e.g. sodium ethylthioethoxide.  In examples diethyl 2-ethylthioethyl phosphite is prepared from triethyl phosphite and p ethylthioethanol.  Diethyl 2-ethylthioethyl phosphorothionate is prepared from diethyl 2-ethylthioethyl phosphite and sulphur flowers. OO-Diethyl S-2-ethylthioethyl phosphorothiolate is prepared by heating diethyl 2-ethylthioethyl phosphorothionate with sodium ethylthioethoxide.  The diethyl 2-methylthioethyl phosphorothionate is not readily isomerised and consequently the phosphorothionates which contain a discrete methyl substituent are excluded.
Patent GB-984494-A (GB)
Title: Improvements in making fine grained castings
IPC: B22C23/02
Filed: 1963-03-08
Abstract: Cast alloys have the following compositions in percentages by weight: ..A.B .C.0.10  max..0.50 .Mn.0.15  max..- .Si.0.20  max..- ..A.B .S.0.015  max..- .Cr.15.0.25.5 .Ti.3.25.- .B.0.03.- .Al.4.25.- .W.-.7.5 .Mo.5.0.- .Fe.4.0  max..2.0  max .Cu.0.10  max..- .Zr.0.06 max..- .Ni.balance.10.5 .Co.18.5.balance Reference has been directed by the Comptroller to Specification 870,745.
Patent GB-1060876-A (GB)
Title: Logic arrangement for binary code generators
Inventor: MASON FREDERICK PERCIVAL
IPC: H04L17/04
Filed: 1965-03-05
Abstract: 1,060,876. Electric selective signalling. CREED & CO. Ltd. March 5, 1965, No 9451/65. Heading G4H. [Also in Division H4] To verify the presence of all the bits of a code combination pairs of transducers feed individual OR gates which are connected to an AND gate. One or the other transducer of each pair gives an output, depending upon whether the bit is a one or a zero. The transducers are associated with the keys of a keyboard, and may be electro-optical, magnetic, mechanical or acoustical.
Patent GB-492614-A (GB)
Title: Improvements in or relating to pump or compressor-fed installations
IPC: F04D27/02
Filed: 1937-04-02
Abstract: 492,614. Rotary pumps. BHONZA VIA SOC. ANON. April 2, 1937, No. 9463. Convention date, April 2, 1936. [Class 110 (ii)] [Also in Group XXVIII] In an installation for use in aircraft in which instruments 1 are operated from a compressed-air or vacuum tank 2, the output of the compressor or suction pump 5 is controlled by governing its speed in accordance with the altitude. For this purpose the electromotor 6 driving the compressor is controlled by a rheostat 8, the arm 7 of which is operated by a manometric capsule 9. A safety-valve may be provided for preventing excess pressure or vacuum.
Patent GB-1062462-A (GB)
Title: Improvements in and relating to polymers
IPC: C08F8/06
Filed: 1964-03-06
Abstract: A process comprises the steps of thermally degrading a polyhydrocarbon to a lower molecular weight, more unsaturated product, hydrogenating the thermally degraded product substantially to decrease the degree of unsaturation and oxidizing the hydrogenated product.  Known processes of degradation, hydrogenation and oxidation are used.  The exemplified polymer is polyethylene (both high and low pressure) but polypropylene, polybutene and polyallomer are also specified. The product is an easily emulsifiable wax.  The subject matter of Specification 967,820 is disclaimed.
Patent GB-994750-A (GB)
Title: Process for the manufacture of hydroxy-aldehydes
IPC: C07D307/88
Filed: 1962-03-13
Abstract: Cyclohemiacetals of hydroxy - aldehydes, which may exist in the free hydroxy-aldehyde form, and their esters and alkyl ethers, are prepared by reduction of the lactones of the corresponding hydroxy-acids with dialkyl aluminium hydrides or with aluminium trialkyls capable of forming such hydrides and hydrolysis, acylation or alkylation of the aluminium adducts so obtained. Hydrolysis may be effected with water, an alcohol or an acid; acylation with an acid halide or anhydride; and alkylation with an alkyl halide.  The starting materials may be delta- or gammalactones, specified compounds being (18--> 11b )-, (19-->6b )-, (19-->11b )-, (18--> 20a )-, (18-->20b )- and (20-->18)-steroidal lactones, cardanolides, bufanolides, butyrolactone, valerolactone, angelicalactone, phthalide, coumarin, reserpic and deserpic acid lactones, meconin and pilocarpin.  In these compounds carbonyl groups may be protected by acetalization or ketalization and subsequently regenerated. Examples are given and the conversion of the 18(11b )-cyclohemiacetal of 3,18,20 - trioxo - 11b  - hydroxy-D 4 - pregnene into the (18-->11b ) - lactone of 3,20 - dioxo - 11b  - hydroxy - D 4 - pregnene 18-acid by oxidation and into aldosterone by 21-hydroxylation with fungi of the species Wojnowicia graminis is described.  The (18-->11b ) - lactone of 3,3,20,20 - bis-ethylenedioxy - 11b  - hydroxy - D 5 - pregnene-18-acid is prepared by ketalization of the dione. The (18-->11b ) - lactone of 3,3:20,20 - bis-ethylenedioxy - 11b  - hydroxy - D 5 - 17 - isopregnene - 18 - acid is prepared by deketalizing the (18-->11b )-lactone of 3,3-ethylenedioxy-11b  - hydroxy - 20 - oxo - D 5 - pregnene - 18-acid to give, on chromatographic separation, the (18-->11b ) - lactone of 3,20 - dioxo - 11b -hydroxy - D 4 - 17 - isopregnene - 18 - acid and then ketalizing this.  Specifications 946,656 and 973,144 are referred to.
Patent GB-1103952-A (GB)
Title: Improvements in or relating to methods and apparatus for reducing the thickness of metal
Inventor: SAXL KAREL
IPC: B21B13/18
Filed: 1965-03-08
Abstract: 1,103,952. Rolling. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 24 Feb., 1966 [8 March, 1965], No. 9739/65. Heading B3M. The apparatus for reducing metal plate strip or slab as described in Specification 889,662 is modified by the addition of means to increase the resistance to displacement of the rolls 1, 2 from their arcuate path during the oscillating movement of the rolls. In one embodiment a pair of leaf-springs 25 is positioned adjacent the frame beam 8 of each pendulum. The leafsprings 25 are each housed with their ends in engagement with concave bearing surfaces 26 of a screw 27. During the movement of each pendulum in a direction opposite to the direction of feed of the strip, the rolls 1, 2 are displaced from their arcuate path. This displacement is progressively resisted by the springs 25 which are bent by projections 29 on the beams 8. Each spring comes into greater area of contact with the bearing surface resulting in a reduction of its effective spring length so that the springs progressively stiffen and increase the resistance to displacement. The resultant paths of the rolls are substantially parallel straight lines and reduce the metal to a substantially uniform gauge. In an alternative embodiment, Fig. 5 (not shown), the springs (40) are arcuate and are fixed to straight bearing surfaces (41) at their centres and abutted by a pair of projections (42). In a further embodiment, Fig. 6 (not shown), the beams 8 each have a block (48) fixed thereto. Three tubes (43)-(45) are fitted one within the other between the block (48) and the bearing surface at the end of the screw 27. The bearing surfaces on the block (48) and the screw (27) are stepped so that the inner tube (43) abuts both surfaces, the middle tube (44) is spaced from the upper surface and the outer tube (45) is spaced further from the upper surface. The increasing load as the pendulum swings gradually compresses the tube (43) axially until the tube (44) abuts both bearing surfaces whereupon the both tubes (43, 44) begin to be compressed, until the tube (45) abuts both surfaces, whereupon all three tubes are compressed together. In a modification of this embodiment the tubes are replaced by compression springs. The means for increasing and decreasing the resistance to roll displacement as the pendulums swing could alternatively be hydraulic or pneumatic.
Patent GB-1284695-A (GB)
Title: Improvements in or relating to device for clamping flexible printing plates
Inventor: JOHNE HANS
IPC: B41F27/12
Filed: 1971-04-19
Abstract: 1284695 Mounting printing plates POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 19 April 1971 9800/71 Heading B6C An assembly in a printing machine comprises a rotatably mounted cylinder 2 having in its cylindrical surfaces a slot 3 extending parallel to the axis of the cylinder, a first member 8 slidably mounted in the slot, a second member 4 slidably mounted in the slot, attachment means for attaching one end 19 of a flexible printing plate 1 to the first member 8 and the opposite end to the second member 4, locating means 9 adjustable to locate the first member 8 in a desired position in the slot, displaceable cam means 6, a cam follower, a spring 12 urging the cam follower toward the cam 6, and means coupling the cam follower to the second member 4, the arrangement being such that the second member 4 may be displaced across part of the width of the slot to vary the tension in the printing plate by displacement of the cam. In a further embodiment the second member is moved by a key 10, Fig. 6, movable longitudinally in the cylinder slot. Fig. 9 shows a device similar to Fig. 2 (not shown), in which both members 4 and 8 are movable transversely of the slot.