baber/WOPTO huggingface dataset:
Patent GB-489028-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/62
Filed: 1936-11-16
Abstract: 489,028. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Nov. 16, 1936, No. 31308. Convention date, Nov. 16, 1935. [Class 39 (i)] [Also in Group XXXV] A cathode-ray tube has between the cathode 4 and the deflecting means a series of three diaphragms 1, 5, 15, Fig. 1, which have higher positive potentials the more they are removed from the cathode, the first diaphragm 1 being at a potential of a few volts with respect to the cathode to eliminate space-charge and having a fine aperture 11 which is electronoptically reproduced on the screen. A cylindrical electrode 14 between the diaphragms 5, 15 acts as part of the main lens and is maintained at an intermediate positive potential. The side of the diaphragm 1 facing the screen is concave to assist the concentration of electrons on diaphragm 15. Owing to the high current taken by diaphragm 1 a source of potential separate from the high-voltage source is desirable. In Fig. 1 the cathode heating battery 9 provides the positive potential for diaphragm 1. If the heater is on an alternating supply a rectifier may be provided within the tube, together with a smoothing condenser. In the form shown in Fig. 3, the voltage from the heater transformer 6 is rectified by a diode consisting of anode 21 and cathode 20 heated by the main cathode heater 3. The rectified voltage across condenser 8 is applied to diaphragm 1. A separate winding may be provided on the transformer if a different voltage is desired. The diaphragm 1 may be used for intensity control, a voltage range of 6 volts being sufficient for complete modulation. The Specification as open to inspection under Sect. 91 includes also the provision of a separate modulating diaphragm beyond the diaphragm 1, Fig. 5 (Cancelled) (not shown). It states also that the concave surface of diaphragm 1 may be conical or spherical, a formula for the spherical radius being given, and that a copper oxide rectifier may be employed to rectify the heater voltage to supply the diaphragm 1. The diaphragm 1 is also shown biassed by a separate battery. This subjectmatter does not appear in the Specification as accepted.
Patent GB-889524-A (GB)
Title: Method of making metallic conglomerates
IPC: B22D19/00
Filed: 1960-09-12
Abstract: 889,524. Casting composite articles. LEPSA S.r.L. Sept. 12, 1960 [Nov. 13, 1959], No. 31308/60. Class 83 (1). Molten metal or alloy is poured on to pelleted metal or alloy of higher melting point and a different S.G. and the mould centrifuged until the molten metal solidifies, there being then no contraction of the body on solidification. A mould for moulding plastics is made by surrounding an electro-formed nickel shell 1 in a metal box 3 with preheated metal, e.g. steel, pellets 7, which may be pickled, supporting a metal 8 of lower melting point and higher S.G. e.g. a bronze nickel alloy on a perforated plate 6, heating the assembly to the melting point of the alloy 8 so that it runs into the voids between the pellets, and centrifuging the assembly in a centrifuge 10. The walls of the box 3, and the surface of the pelleted metal may be coated electrolytically with a thin coating of the low melting point metal. In another example the metal 8 is zinc being of lower melting point and lower S.G. than the metal 7 and is poured thereon.
Patent GB-1478012-A (GB)
Title: Supports for books or the like
IPC: A47B23/00
Filed: 1974-07-02
Abstract: 1478012 Book rests; brackets R M BLACKBURNE 2 July 1974 [2 July 1973] 31509/73 Headings A4B and A4H A book rest comprises a transparent plate 1 for supporting a book 8 face downwards thereon for reading from below, a sill 2 and/or clamp for positioning the book on plate 1, the plate 1 being carried by an adjustable support means to position the plate with respect a support surface or member, and electric illuminating means to illuminate the downwardly facing surface of the book. In Fig. 2, the plate 1 is positioned on a bed 5 by individually adjustable telescopic legs 3 which are hinged to or detachable from plate 1, and the book is illuminated by one or more lights 9 adjustable on or detachably mounted on a leg 3. In Fig. 3, the plate 1 is carried by a single arm 10 comprising mutually telescopic and rotatably adjustable parts 10a, 10b, the arm 10 being hinged to plate 1 at 4 and to a plate 12 at 11. The plate 12 may be screwed to a wall, floor, bed, head board etc. In another form Fig. 4 (not shown), the plate is carried by a single leg (14) mounted on a wheeled base (15). In an alternative arrangement, the book may be illuminated by a light source adjacent one edge of plate 1 that shines light into the plate.
Patent GB-1352158-A (GB)
Title: Electrophotographic image reproduction
IPC: G03G5/02
Filed: 1971-04-19
Abstract: 1352158 Electro-photographic image reproduction XEROX CORP 19 April 1971 [30 March 1970] 31521/73 Divided out of 1352157 Heading G2H An imaging method comprises providing an imaging member having adjacent photo-conductive and electric field deformable elastomeric layers with a deformable layer of conductive gas contacting said deformable elastomer layer ionizing said conductive gas and subjecting said imaging member to an electrofield, and exposing said imaging member to information modulated electromagnetic radiation to which the photoconductive material is responsive to the elastomer layer. Ionization may be accomplished by glow discharge, radio frequency excitation, intense radio-activity or arc discharge.
Patent GB-1269705-A (GB)
Title: Improvements in rotary machines such as pumps, compressors or vacuum pumps of the deformable tube type
Inventor: MALBEC MARIE LEON EDOUARD
IPC: F04B43/12
Filed: 1969-06-23
Abstract: 1,269,705. Rotary flexible tube pumps. M. L. E. MALBEC. June 23, 1969 [July 5, 1968], No.31616/69. Heading F1F. A rotary machine of the flexible tube type, operating as a pump, compressor or vacuum pump comprises a flexible tube T, Fig. 2, which is clamped at its ends and pre-stressed to frictionally engage rollers 3 freely mounted on rods 2 interconnected by flanges 1, Fig. 1, having central apertures through which freely passes a motordriven shaft 4. There is slight clearance between the shaft 4 and the rollers 3 and due to prestressing the tube T, rotation of the shaft 4 causes frictional contact between the shaft and rollers to rotate the latter in the manner of planet gearing to produce cyclical pulsations in the tube. To prestress the tube an anchor-plate 5 through which the tube ends pass is screw-threadedly connected to a base-plate of the machine. The amount of prestressing may be adjusted to adjust the output of the machine. In another embodiment, the rollers 3A, Fig.3, are made as spool members having end flanges 11, frictionally engaging reduced diameter portions on the motor-driven shaft 4A and a hub portion 12 frictionally engaging the prestressed tube to give a two-stage speed reduction of the rollers with respect to the motor-driven shaft. The rollers may co-operate with a plurality of flexible tubes which are arranged to dynamically balance the forces acting on the rollers.
Patent GB-884611-A (GB)
Title: Recovering uranium from materials containing uranium and molybdenum
IPC: C22B60/02
Filed: 1959-09-16
Abstract: Uranium values are recovered from solutions containing uranium and molybdenum, for example those obtained by leaching ores with mineral acids, by extracting them with an amine, and then removing them from the amine, any molybdenum values also passing into the amine being maintained as molybdates to prevent the precipitation of molybdenum-amine complexes, for example by treating the amine extract with an oxidizing agent, e.g. H2O2, which may have been acidified, e.g. with sulphuric acid, sodium chlorate, ammonium persulphate or chlorine.  The uranium values may be recovered from the amine by extraction with an aqueous solution of sodium chloride having a pH below 7,0, which may have been acidified with sulphuric acid.  After the uranium has been removed from the extractant, a portion of the extractant may be treated for the removal of molybdenum, for example by stripping with an alkaline solution, for example of alkali-metal hydroxide or carbonate, or alkaline earth metal hydroxide, sodium carbonate being preferred, before being returned for further extractions. The amine extractant may be a secondary or tertiary amine, preferably possessing straight or branched chain alkyl substituents, which may be the same or different, each containing 8 to 22 carbon atoms.  Suitable amines include R1 NHR2 where R1 is an aliphatic hydrocarbon group having a tertiary carbon atom at the point where it is attached to the nitrogen, and having attached to it alkyl groups having a total of 11 to 14 carbon atoms, and R2 is a C12H25 group, or the group <FORM:0884611/III/1> Examples are Amberlite LA2 and LA1 (Amberlite is a Regeristered Trade Mark); Tri-isooctyl amine; bis(1-isobutyl-3, 5-dimethylhexyl) amine; Di (3, 5, 7-trimethyloctyl) amine; 6-benzylamino-3, 9-diethyltridecane; and R5CH(R4)NHCH2 C6H5 in which R4 and R5 are alkyl groups containing 7 to 11 carbon atoms. In examples, a tertiary alkyl amine, in which the alkyl groups are straight chain hydrocarbon groups containing principally 8 or 10 carbon atoms with a minor amount of alkyl groups containing 12 carbon atoms, which groups are derived from the mixed C8, C10 and C12 acids of coconut oil, was employed in the form of a solution in kerosene containing di-isobutyl ketone or 2-ethyl hexanol.
Patent GB-292021-A (GB)
Title: Improvements in bottle crates
IPC: B65D25/04
Filed: 1927-11-24
Abstract: 292,021. Wildberg, H. Nov. 24, 1927. Corner joints; strengthening straps.-In a crate for milk bottles &c. of the kind formed from strips of wood and having sub-divisions formed from metallic cross-wires, the side and end walls of the crate are formed by wooden strips 1, 2 arranged in tiers and a metallic angle plate 12 is fitted outside each corner from the flanges of which inwardly projecting ears are punched which support the wooden strips 1, 2 in proper relation. The inwardly projecting ears 8 are clinched as at 15, around the inner faces of the strips 1, 2. The ends of the strips 1, 2 have co-operating mortises and tenons. Locking plates 13 are provided inside each corner having slots therein to accomrr odate the ears 8. The angle plates 12 have inwardly directed marginal flanges which engage in slots in the strips 1, 2. Guard straps or plates 22 are provided on the outer edges of the strips 1, 2 and are flush with the surface thereof, and countersunk holes are provided therein to accommodate the ends of tie-rods 17. The guard plates are channelled to enclose the reduced edges of the walls of the crate.
Patent GB-536897-A (GB)
Title: Improvements in a faucet valve
IPC: F16K1/48
Filed: 1939-12-07
Abstract: 536,897. Valves. WALKER, E. Dec. 7, 1939, No. 31708. [Class 135] A washer for a lift valve member is formed with a socket therein adapted to engage, with a snap-action, a projecting head of a screw inserted in the end of the valve spindle. In the form shown in Fig. 3, the head 23 is formed on a member 21 screwed into the valve spindle 19 and has a cylindrical part 22 and a part with a peripheral groove 24. The washer 25 of rubber or fibre is backed by a flanged plate 27 and is formed with a socket extending part way through the washer, said socket having an internal bend adapted to snap into the groove 24. In a modification, the head is the same diameter as the member 21 which is secured by a lock-nut. In a further modification, the socket is provided with an upstanding plug with an external bend adapted to cooperate with a socket formed in the end of the member 21.
Patent GB-538512-A (GB)
Title: Improvements in or relating to molds for casting purposes
IPC: B22D15/02
Filed: 1939-12-07
Abstract: 538,512. Foundry moulds. STEVENS, A. H. (Aluminum Co. of America). Dec. 7, 1939, No. 31724. [Class 83 (i)] A permanent mould for casting aluminium or other pistons or other cap-shaped article having thin and thick portions comprises two parts recessed on their meeting faces to form one or more cavities with axes horizontal and a sprue extending across the axis or axes and communicating with the base or thick forming parts only of the cavities. The mould has a table 16 carrying a frame 18, bolted at 50 and resting on feet 51 to allow expansion due to heating. Two slides 20, 21 move on horizontal guides 53, 55, Fig. 5, and 57, Fig. 4, of the frame, these guides also being arranged to allow expansion. Each slide has a cavity in which is arranged two dies 28, 29 recessed on their meeting faces to form the exterior of two pistons with their axes horizontal and in the parting plane. In the slides are also formed a sinuous sprue 36, a riser 35 and gates 37, 33. The frame 18 also carries a block 38 with holes 39, 40, to guide the cores, and countersinks 41, forming part of the casting cavities, whereby the castings are supported after the withdrawal of the cores and dies as shown in Fig. 4. The cores each comprise a wedge 42, operated by a rack 47 and a pinion 141, and segments 43, moved laterally by toggles, and shafts 45, 46. The slides 20, 21 are operated by toggles and shafts 25, 27. The shaft 70, Fig. 2, on which the pinion of the upper rack 47 is mounted, is driven through a lost motion device 71 by the lower shaft 67, which has a pinion engaged by rack teeth 59 on the piston rod of the actuating cylinder 58. Teeth 83 on this rod act, through a gear 81, to reciprocate a cam plate 92, Fig. 8, having formations 86, 87, 94, 194 to act on crank arms of the shafts 25, 27, 45, 46 in succession when stripping the casting. By reason of the device 71 the wedges 42 are also withdrawn successively. The bearings of the shafts 25, 27, 45 and 46 may be elongated in a direction at right angles to the mould axes to allow expansion. In a modification the shafts 67, 70, Fig. 13, are integral, all the shafts 25, 27, 45, 46, and 70 are rotated by handles H instead of by power, the wrist pin cores 32 are withdrawn slightly, before the dies 28, 29 begin to move, a wedge clamp 137 is mounted on the part 20, and the sprue is sinuous in the parting plane and forms two traps A, B, Fig. 14, for light inclusions. The mould may be heated before casting operations are commenced and may be cooled internally or externally between each operation to optimum temperature. Specification 538,867 is referred to.
Patent GB-1305358-A (GB)
IPC: A61K8/44
Filed: 1970-06-30
Abstract: 1305358 Aerosol hair - setting lacquers L'OREAL 19 Feb 1970 [19 Feb 1969] 31779/72 Divided out of 1296102 Addition to 1161349 Heading C4X [Also in Division A5] An aerosol composition for wave-setting hair comprises an active cysteamine compound of formula  (see Division A5), at least one conventional resin of cosmetic use, and a propellant. In Example 1, a commercially available resin, 2 - amino - 2 - methyl - 1 - propanol, S - benzylcysteamine hydrochloride, cedar oil and absolute alcohol are mixed with Freons 11 and 12 ("Freon" is a R.T.M.). In Example 2, the same propellants are mixed with a composition comprising a vinyl acetate/vinyl pyrrolidone copolymers, ethyl nicotinate, S-benzyl-cysteamine hydrochloride, and absolute alcohol.
Patent GB-889267-A (GB)
Title: A process for the preparation of hydrocarbons by coupling hydrocarbon radicals
IPC: C07C4/16
Filed: 1960-09-15
Abstract: Hydrocarbons are obtained by the coupling of hydrocarbon radicals by a process which comprises pyrolysing a compound having one or more hydrocarbon radicals attached to a saturated carbon atom in a ring in the molecule.  The hydrocarbon radicals to be coupled are preferably substituents on the saturated carbon atoms of a dihydro-aromatic hydrocarbon which preferably contains fused rings.  Suitable aromatic hydrocatbons are benzene, naphthalene, biphenylene, cyclopentaindene, s-indacene, as-indacene acenaphthylene, anthracene, phenanthrene, fluoranthrene, naphthacene, chrysene, triphenylene pentacene, picene, dibenzophenanthrene and phenyl naphthalene.  One or two substituents is or are introduced by alkylation preceded or followed by hydrogenation, if aliphatic the radical may contain 2 to 8 carbons, if aryl (including alkaryl and aralkyl) 6 to 16 carbons. Representative are ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, isoprppyl, isobutyl, tert.-butyl, 2-ethylpropyl, 1-methylpropyl, benzyl, o-methylbenzyl, cyclopentyl, cyclohexyl, allyl, methallyl, 2-pentenyl, 2-methyl-2-butenyl, 3-pentenyl, 4-pentenyl, 2-butenyl, 3-butenyl, 2,3-dimethyl-2-butenyl, 1,1-dimethyl-2-propenyl, 1-methyl-2-propenyl, cyclopent-2-enyl, phenyl, naphthyl, tolyl and xylyl.  Two different radicals may be present but preferably two different compounds are employed to obtain "mixed" products.  Other hydrocarbyl groups, unaffected by the pyrolysis, may be present.  The pyrolysis is effected at 350 DEG C.-550 DEG C. for 1-120 seconds at 1 mm. Hg to 1,000 atmospheres (preferably atmospheric pressure) a diluent being added, if desired, e.g. nitrogen, helium, flue gas, carbon monoxide or benzene vapour, the precursor aromatic hydrocarbon is produced along with the coupled compound and may be re-used by alkylating and hydrogenating.
Patent GB-899818-A (GB)
Title: Improvements relating to gain control circuits for electrical signals
Inventor: WATTON WALTER LESLIE
IPC: H03G7/02
Filed: 1957-10-12
Abstract: 899,818. Gain control. ELECTRIC & MUSICAL INDUSTRIES Ltd. Oct. 13, 1958 [Oct. 12, 1957], No. 31931/57. Class 40(5). A gain control arrangement comprises two or more parallel-connected amplifiers of differing gain, the gain being reduced by switching out one or more of the amplifiers. I.F. amplifier V2, which is coupled to a preceding stage V1 by a tuned circuit comprising inductance L1 and residual circuit capacity is shunted by an additional amplifier V3. The latter is of lower gain, its grid being connected to a tap on the inductance L1 and its anode to a tap on the load resistance R4, R5 of amplifier V2 The gain is reduced by negative-going switching pulses which are applied to the suppressorgrid of valve V2 to disable it. The gain may be switched automatically and at relatively high speed, and several stages of an amplifier may be modified as described so that the gain may be reduced successively in a number of steps. The switching pulses may be produced by a monostable trigger circuit which changes from one state to the other when the signals at the following detector exceed a predetermined amplitude, the gain being restored to the maximum value after a predetermined time interval. Several trigger circuits may be interconnected so that if the gain reduction produced by the first is insufficient a second is triggered to reduce the gain of a further stage, and so on. In a multichannel receiver the switching can be so arranged that the largest of the signals received in any of the channels simultaneously reduces the gain of all by the same amount (Fig. 2, not shown).
Patent GB-812087-A (GB)
Title: Improvements in and relating to elastic waistbands for trousers, skirts and other garments
IPC: A41F9/02
Filed: 1956-10-22
Abstract: 812,087. Waistbands. BELLE JARDINJERE. Oct. 22, 1956 [May 15, 1956], No. 32040/56. Class 141 A trouser &c. waistband comprises a main elastic band 1 to which is secured by overcast stitching 3 a subsidiary band 2 having an upper elastic portion 4 and a lower non-elastic pleated flounce portion 5. The trousers &c. edge is positioned between the two bands and secured thereto by stitching 10. The flounce portion 5 is left free.
Patent GB-781233-A (GB)
Title: Blast furnace cooling plate holder
IPC: F27D1/12
Filed: 1955-11-09
Abstract: 781,233. Blast furnace cooling plates. ANDERSON, O. B., and JACOBS, B. I. Nov. 9, 1955, No. 32048/55. Class 51 (2). Cooling plates 5 are held in a blast furnace wall comprising an inner refractory lining 1 spaced from an outer shell 3, by cooling plate holder assemblies 14 inserted 'through openings in the shell 3, each assembly comprising a collar 16 welded in a shell opening, and a hollow holder 15 extending through and being detachably connected to the collar, the cooling plate 5 being sealed in the neck 17 of the holder by fireclay packing 18. The holder 15 and collar 16 have co-operating flanges 20 and 22 respectively held together by bolts 24 passing through vertically elongated slots 21 in the flange 20. Outer movement of each cooling plate is prevented by a channel-shaped stop 27 engaging the cooling plate outer wall 10 and formed with an opening for a wedge 28 passing through vertically-spaced loops 29 on the holder flange 20. The openings in the shell 3 are in spaced rows and are in staggered relationship. On assembling the wall, the collars 16 are welded in the openings so that each cooling plate 5 extends an equal distance from the front face 13 of the refractory lining. The bolts 24 are not securely tightened until the furnace has been heated up, expansion of the refractory lining, and consequential movement of the cooling plates, being allowed for by the elongated slots 21 in the holder flanges 20. Each of the cooling plates 5, Fig. 7, is a hollow casting, preferably copper, having a partition 7 dividing it into two chambers connected at the front end by a passage 8, and formed with water inlet and outlet openings 11 and 12.
Patent GB-1023229-A (GB)
Title: Driving unit for motor vehicles
IPC: F16H57/037
Filed: 1964-08-06
Abstract: 1,023,229. Motor vehicle driving gear. N.S.U. MOTORENWERKE A.G. Aug. 6, 1964 [Aug. 7, 1963], No. 32103/64. Heading B7H. The engine 1 and transversely arranged gearbox 4 of a motor vehicle are separately bolted on to differential gear housing 5 which is supported from the vehicle body and clutch shaft 11 which is rotatable in the end of crank-shaft 10 is disengageably mounted in gear-box input pinion 12 and gear-box output shaft 14 is disengageably mounted within differential input pinion 16. The engine shown is air-cooled and arranged transversely of the vehicle and the differential housing has a bracket 19 (Fig. 2, not shown) attached to the vehicle body directly and brackets 17, 18 (Fig. 1, not shown), connected to support 20 which is attached to the vehicle body through rubber/metal elements 23, 24. Lifting rings are provided on the engine and gear-box.
Patent GB-865255-A (GB)
Title: Improvements in and relating to hydrazine derivatives
Inventor: DRAIN DAVID JOHN
IPC: C07C243/38
Filed: 1958-10-08
Abstract: The invention comprises 1-acetyl- and 1-benzoyl-2-isopropyl hydrazines.  The compounds are prepared by catalytic hydrogenation of the corresponding isopropylidene hydrazines.ALSO:Preparations in dosage form, e.g. tablets, contain either 1-acetyl- or 1-benzoyl-2-isopropyl-hydrazine, or both, together with an inert diluent or binder.
Patent GB-176066-A (GB)
Title: Improvements in screw and like propellers for aeroplanes
IPC: B64C11/16
Filed: 1921-08-11
Abstract: 176,066. Cookson, C. S. Aug. 11, 1921. Screw propellers.-The tips of the blades of a screw propeller are secured to a central solid ring inside a streamline tubular ring. A V-shaped piece C is bolted and screwed to each blade tip A, the outer end of the piece being slotted and fitted over a flat ring D, to which it is bolted. An outer stream-line tubular ring B encloses and is welded to the solid ring, the tube and openings therein for assembly being closed by welding.