baber/WOPTO huggingface dataset:
Patent GB-609710-A (GB)
Title: Improvements in and relating to high-frequency control networks
IPC: H01Q3/24
Filed: 1944-08-08
Abstract: 609,710. Thermionic distributers; impedance networks. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 8, 1944, No. 15101. Convention date, Aug. 9, 1943. [Classes 40 (iii) and 40 (viii)] [Also in Group XL (c)] Two aerials 4, 5 which are differently oriented or positioned for receiving short-wave pulses reflected from a remote object feed a receiver over paths which are made effective alternately, each path being constructed as a bridged-tee network L, C, R2, L2, with the inductance L2 in the shunt arm shunted by a diode D in series with a large capacity C2. The diodes in the two networks are alternately rendered conductive by voltage of rectangular wave-form supplied from a source 10. The resistances R2 are so adjusted that when a diode D is in the conductive state the effective resistance of the shunt arm is a quarter of that of the pair L, C, and the attenuation is consequently infinite. When, on the other hand, a diode is non-conductive its capacity tunes the inductance L2 to the signal frequency, and the pair L, C is similarly tuned; in this case transmission takes place. Impedance-matching transformers 11, 12, are employed, or they may be replaced by adjustable lengths of transmission line, Fig. 2 (not shown). The receiver leads 8 are connected to the transformers by line sections which are made #/4 long to prevent the blocked branch of the network from short-circuiting the active branch.
Patent GB-1456160-A (GB)
Title: Transport containers
IPC: B65D88/54
Filed: 1974-04-05
Abstract: 1456160 Compartmented tanker vehicles W HERMANNS 5 April 1974 [6 April 1973] 15206/74 Heading B8E A tanker vehicle has at least three compartment 1-3 of which the end ones 1, 3 are fluid tanks having inlet hatches 10 and the compartment 1 has a compressed air inlet 9 and the compartment 3 a drain valve 11. To allow discharge of the both tanks 1 and 3 they are connected by a pipe 4 passing through the compartment 2, which transports powders, and being welded to the partitions 6, 7. Means 5 are included to compensate for vibration and expansion and a riser 8 ensures that compressed air introduced can completely empty the compartment 1.
Patent GB-516561-A (GB)
Title: Improvement in putty knife
IPC: E04F21/32
Filed: 1939-05-22
Abstract: 516,561. Putty knives. BUSSERT, F. R. May 22, 1939, No. 15226. Convention date, May 20, 1938. [Class 61 (ii)] A putty knife comprises blades 13 disposed at an obtuse angle to each other with a space 16 between them at the. apex of the angle and extending to the ends of the blades, which are joined together behind the space at 14 and have their forward edges, 15 disposed preferably at less than a right angle; the handle part 11 has its end 12 disposed at a right or lesser angle as in an ordinary putty knife. In use for smoothing putty 21 applied in the angle between the glass 19 and the edge 20 of the sash the one blade 13 engages the sash and the other blade 13 the putty. Surplus putty is 'removed from the edge of the putty strip 22 adjacent the glass by one corner of the right hand blade 13 and the surplus putty adjacent the edge 20 of the sash is cut off by the other corner and escapes through the space 16.
Patent GB-903924-A (GB)
Title: Two speed hub transmission and brake
IPC: B62M11/14
Filed: 1961-04-28
Abstract: 903,924. Change-speed gear. BENDIX CORPORATION. April 28, 1961 [July 29, 1960], No. 15397/61. Class 80 (2). [Also in Group XXXI] Baulking means for the high-speed clutch nut 24 of the two-speed hub and coaster brake described in Specification 902,944 comprises a thimble 38 secured to the high-speed screw shaft 19 by a tab 42 engaging a hole 43 in a bearing portion of the shaft; notches 46 are formed in one end of the thimble which abuts a shoulder 39 of the shaft to form ratchet teeth therewith. A flange 48 on the thimble limits axial movement of an indexing member 49 which is mounted on the thimble and has spring pawl arms 52 engaging the ratchet teeth and spring arms 54 with radially outward ends 56 engaging splines 61 of limited axial, extent formed internally on the high-speed clutch nut 24. Notches 58 are formed on the nut 24 and co-operate with lugs 53 struck out of the indexing member 49. In operation, on slight back pedalling, the highspeed clutch nut is held by retarder means, the shaft 19 and thimble 38 are rotated in the direction b and the indexing member 49 is held stationary by the engagement of its arms 54 with the splines 61. The pawl arms 52 of the indexing member are thus displaced to the next ratchet tooth, and the clutch nut moves axially along the shaft, causing the arms 54 to leave the splined portion 61 and co-operate with a smooth portion 59 of the nut. This limited engagement between the splines 61 and arms 54 prevents the pawls 52 from being over-indexed to a second ratchet tooth. Upon successive backpedallings the member 49 is indexed step-bystep to bring the lugs 53 alternately into register with the notches 58 and the parts therebetween to alternately permit and prevent engagement of the high-speed clutch nut 24 with the driven hub.
Patent GB-1388204-A (GB)
Title: Process for the treatment of exhausted chromium-plating  solutions
IPC: C02F9/00
Filed: 1972-04-04
Abstract: 1388204 Treating chromium plating solution FUJI KUROMU SHA KK 4 April 1972 [5 April 1971 14 Aug 1971 (2)] 15428/72 Heading C1A [Also in Division C7] Exhausted aqueous chromium plating solution is treated with chromium trihydroxide or an alcohol of formula ROH wherein R is an alkyl group having 1 to 3 carbon atoms (e.g. ethyl alcohol), to convert all chromium values contained in the exhausted solution to a chromium chromate complex compound containing Cr<SP>6+</SP> and Cr<SP>3+</SP> ions and to convert iron values contained in the exhausted solution to ferric hydroxide and the resulting mixture is filtered to separate the aqueous chromium chromate complex compound solution from the ferric hydroxide. The chromium trihydroxide may be employed in a stoichiometrically equivalent amount to the chromic anhydride content of the exhausted solution and the alcohol may be employed in an amount of 400 ml. per 1 kg. of chromic anhydride in the exhausted solution. The ferric hydroxide residue may be burnt to convert it to ferric oxide and the aqueous chromium chromate complex solution obtained may be recycled to the chromium plating solution or can be used as an anode electrolyte in diaphragm electrolysis employing potassium dichromate, sodium dichromate, ammonium dichromate, potassium chromate, sodium chromate or ammonium chromate alone or in admixture as the cathode electrolyte to produce regenerated chromium plating solution.
Patent GB-1094404-A (GB)
Title: Improvements relating to exposure control apparatus for cameras
IPC: G03B7/02
Filed: 1965-04-12
Abstract: 1,094,404. Photo-metric exposure control. INTERNATIONAL POLAROID CORPORATION. April 12, 1965 [April 13, 1964], No.15481/65. Headings G2A and G2J. An exposure control comprises polarizers 25, 26 rotatable about a shaft 29 so as to vary light passing through exposure aperture 12 and view-finder aperture 13. The view-finder has a transparent plate 19, Fig.2, with a reflective spot 20. Light from lamp 23 is reflected on to spot 20 to provide a spot of predetermined light intensity superimposed upon the scene as viewed through the view-finder, such that the intensities of the two may be compared and the latter adjusted by relative rotation of the polarizers in front of the view-finder aperture to provide an apparent equal intensity of light from each source. A quarter wave plate may be provided on the front of the polarizer 26 to prevent light, due to reflected glare, interfering with proper exposure.
Patent GB-596686-A (GB)
Title: Improvements in or relating to electrical contacts
IPC: H01H1/023
Filed: 1945-06-19
Abstract: A powder mixture for sintering to form a non-welding electric contact element comprises 82 per cent. by weight of precipitated silver powder and 18 per cent. by weight of a mixture of cadmium oxide and cadmium sulphate.  Of the latter mixture, 85 per cent. is cadmium oxide and 15 per cent cadmium sulphate.  Specification 588,652 is referred to.
Patent GB-330121-A (GB)
Title: Improvement in life saving net
IPC: B63C9/02
Filed: 1929-05-21
Abstract: 330,121. Reno, J. W. Feb. 12, 1929, [Convention date]. Rafts.-A series of floats are connected by flexible connections so as to produce a buoyant structure which may be folded into small space for stowage. Each float 1 mab be built up of two parts 7, 8 which are clamped by screws 9 on to a rope 2. The part of the rope between adjacent floats is longer than the width of the float. This permits of folding the raft which is shown extended in Fig. 1 to the compact parcel shown in Fig. 5, which may be secured by a band 12 the ends of which are stuck with a water soluble cement and protected by a readily removable waterproof paper cover 14. A boom 4 may be fastened by snap-hooks to the raft by which it may be towed.
Patent GB-573418-A (GB)
Title: Improvements in electrical measuring bridges
IPC: G01R17/00
Filed: 1943-09-24
Abstract: 573,418. Inductance measurements. GENERAL ELECTRIC CO., Ltd., TURNER, H. C., and FISHER, W. H. Sept. 24, 1943, No. 15695. [Class 37] A bridge for measuring the inductance and Q value of an inductor has its arms constituted by a resistor R2, condensers C2, C3, and the inductor RL in parallel with a condenser Cl. The bridge is supplied with AC from a source E, a detector D of such current being connected across the other diagonal. The condensers C1, C2 are gauged so that their ratio is constant. The condenser Cl is provided with a scale reading directly in terms of the required inductance. The Q valve is proportional to the capacitance of the condenser C3. For the examination of a succession of inductors which are closely similar and have a self-capacitance C4, the condensers Cl, C2 are ganged so that (C1-C4)/C2 is constant.
Patent GB-916867-A (GB)
Title: Apparatus and a method for continuously digesting raw cellulosic material
IPC: D21C1/10
Filed: 1959-05-07
Abstract: <PICT:0916867/IV(a)/1> Apparatus for continuously digesting &c. cellulosic material, e.g. chips, comprises a chamber 11 with an inlet 21 submerged in the digestion liquor, e.g. a caustic solution, and an outlet 22, a screw-feeder 10 (transverse to the plane of the drawing), with a perforated casing, compressing the chips &c. to eliminate voids and express air and liquids so that on entering the chamber 11 they expand whilst submerged and are received by a screw-conveyer 25 which takes them over a strainer 26 and discharges them at 22 to an assembly 12 which may be identical with the feeder 10 and from which they fall through a spout 49 to a conveyer 50 which feeds them to defibring machines 13 which deliver them as pulp to a stock chest 15 from which the pulp is pumped at 16 to refiners &c. Digestion liquor from the tank 17 is circulated through pipe-lines as illustrated, the lines 41 being for spraying the chips before they are compressed.  The chips may be processed at room temperature, e.g. for 20 mins. submerged time, and 5 mins. drainage time.  The compression by the screw-assemblies 10, 12 effects substantial defibring.
Patent GB-1459692-A (GB)
Title: Process for the production of a catalytic deposit
IPC: B01J21/18
Filed: 1974-04-09
Abstract: 1459692 Electrodes for fuel cells SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM & CIE 9 April 1974 [16 April 1973] 15747/74 Heading H1B [Also in Divisions B1 and B2] An electrode, e.g. for a fuel cell, may be formed by depositing activated carbon and a binding agent, e.g. PVC, on to a support, e.g. a stainless steel plate, by forming a suspension of the carbon in a first liquid medium, forming a solution of the binding agent in a second liquid medium which is immiscible with the first, mixing the two media to form an emulsion, applying the emulsion to the support and removing the liquid media. The first liquid medium may be a mixture of water and 1% triethanolamine or an alcohol, e.g. butanol. The second liquid medium may be a cyclic ketone, e.g. cyclohexanone.
Patent GB-853738-A (GB)
Title: Improvements in stain resistant white sidewall barrier
IPC: C08L23/28
Filed: 1957-05-17
Abstract: A light-coloured sidewall of a tyre containing natural and reclaim rubber, is made resistant to staining by migration of material from other parts of the tyre by making it of, or vulcanising it to the tyre through an intermediate layer of, a chlorinated butyl rubber, namely a chlorinated copolymer containing 80-99,5 parts of an isoolefin having 4-8 carbon atoms and 20-0,5 parts of an open chain conjugated diolefin having 4-7 carbon atoms, particularly isoprene, the chlorine content of the copolymer being 0,8-1,5% preferably about 1%. The sidewall or the barrier layer may contain 5-20% of chlorosulphonated polythene and/or 1-10% a non-reactive phenolformaldehyde condensation product such as poly-2,6-dimethylol-4 methyl, octyl, or phenyl phenol.  The following compositions are described (1) chlorinated butyl rubber, made by adding 4% of dichlorodimethyl hydantoin and 1% stearic acid to butyl rubber in a mixer; (2) unstainable sidewall compositions containing 80 parts of chlorinated butyl rubber, 20 parts of chlorosulphonated polythene or 20 parts of natural rubber, 20 parts of zinc oxide, 0-10 parts of a poly dimethylol alkyl phenol, and substantial proportions of titanium dioxide, magnesia, and silica; (3) a stainable sidewall composition comprising mainly crude pale crepe rubber with 25% of white pigments and minor proportions of pine oil, stearic acid, wax, and zinc oxide; (4) a black tyre composition comprising about equal parts of crude natural and reclaimed rubber, about 10% of clay, and minor proportions of pine tar, stearic acid, burgundy pitch, and zinc oxide.
Patent GB-1422545-A (GB)
Title: Nuclear fusion reactors
IPC: G21B1/00
Filed: 1973-04-03
Abstract: 1422545 Fusion of nuclei B C MAGLICH 3 April 1973 [25 April 1972] 15842/73 Heading G6P A nuclear fusion reactor (termed a " migma reactor ") embodies coils arranged to produce a magnetic field which has decreasing strength radially from the axis of the reactor and increasing strength axially. from the mid-plane of the reactor so as to induce precession of, and exert radial and axial focusing forces on, likecharged ions which are injected to the centre of symmetry of the field thereby to cause ion collisions producing nuclear fusion. Following an extensive discussion of the theory behind the operation of the reactor and the types of reactions effected, a practical construction is described as summarized below. A " migma cell " (single cell of a " migma reactor ") (Fig. 106) comprises aluminium foil cylinders 201-206 stretched on copper mesh and an outer, copper cylinder 207 all supported from an alumina ceramic plate 300 and connected to HT connectors 301-307. Pairs of coils la, 2a (more particularly described with reference to Fig. 1c, not shown) are arranged inside cylinder 201 and are cooled to render them superconductive; leads 9, 10 supply the coils. An enclosing jacket 408 has a refrigerant circulated therethrough and the interior of the jacket is evacuated. A 2À2 MeV deuteron beam 500 is injected and focused by quadrupole lenses 412 to produce a migma (organized mixture of precessing selfcolliding orbits of positively charged ions) in the reaction region between the coils 1a, 1b. Nuclei leaving this region are collected by the cylinders 201-207 for the purpose of electricity generation. The " migma reactor" " (Figs. 11a, 11b). comprises rows and columns of " migma cells " as previously described. The cylinders are replaced by flat plates. Any deuteron which enters the escape cone of one " migma cell " is trapped in an adjacent " migma cell " and so follows a trajectory 999. Each column of cells is filled in succession by a two-dimensional scanning technique.
Patent GB-625221-A (GB)
Title: Improvements in and relating to scissors
IPC: B26B13/06
Filed: 1947-06-16
Abstract: 625,221. Scissors. SMOLENSKY, P. June 16, 1947, No. 15846. Convention date, June 15, 1946. [Class 30] In scissors of the type comprising cutting- blades 1, 2 stamped from sheet metal and stiffened by reinforcing ribs 3, 4, each blade is twisted longitudinally forward of the pivot pin, preferably in the form of a helix of high pitch, and the cutting-edges are maintained in close contact during use by providing cam or abutment surfaces 5. The handles can be coated with plastic material. The ribs 3, 4 are produced by bending the blades.
Patent GB-345567-A (GB)
Title: Improvements in and relating to throttle valves
IPC: F16K39/02
Filed: 1930-05-23
Abstract: 345,567. Engine stop-gear. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Doran, J. H. ; 8, Oneida Street, Schenectady, New York, U.S.A.) May 23, 1930, No. 15930. Convention date, May 23, 1929. [Class 122 (iv).] A valve adapted to function as an emergency stop device has the nut 26 for the actuating screw slidably mounted in the yoke 25 and is normally supported by a lever 29, held up by a catch 30. A releasing lever 32 loaded by a spring 33 is normally held out of action by a catch 36 adapted to be released by an emergency governor. The throttle valve has a balanced main valve member carrying a seat for a secondary valve for admitting reduced steam supplies for warming up the turbine and bringing it up to normal running speed and also carrying a pilot valve for balancing the pressures acting on both main and secondary valves.
Patent GB-382579-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H04B1/16
Filed: 1932-06-06
Abstract: 382,579. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Moore, J. B. ; Riverhead, Long Island, New York, U.S.A.) June 6, 1932, No. 15958. Convention date, June 5, 1931. [Class 40 (v).] Flow of alternating currents between the cathodes and heaters of indirectly heated valves in a High frequency amplifier is prevented by a high impedance for such currents between cathode and heater and a low impedance for the same currents between the cathode and a point of zero alternating current potential. The Figure shows a superheterodyne receiver comprising high frequency amplifiers 4, 6, a first detector 14 and the usual intermediate and low frequency stages 18, 19. Local oscillations are fed to valve 14 bv an oscillator 12 through an amplifier 10. Valves 6, 10 are of the indirectly heated type and have their filaments 24 supplied in series through leads 26, 28, with earth return, from a direct current source. High frequency currents are prevented from passing from the cathodes 22 to the heaters by high frequency chokes 34 and large condensers 32 are connected between the cathodes and earth. Grid bias for valve 6 is obtained from the choke 34 and resistance 40 and for valve 10 by the grid leak 44 and blocking condenser 46. High frequency currents are precluded from the oscillator filament supply circuit by a choke 54 and condenser 56.
Patent GB-120385-A (GB)
Title: Improvements in and relating to Aromatic Arsenical Compounds.
IPC: C07F9/74
Filed: 1918-10-03
Abstract: 120,385. Rockefeller Institute for Medical Research, (Assignees of Jacobs, W. A., Brown, W. H., Heidelberger, M., and Pearce, L.). Oct. 3, 1917, [Convention date]. Arsenoaryl compounds containing in each aromatic nucleus an a -aminoacylarylamide group- NHCHRCONHAr, the aryl radical Ar containing a salt-forming substituent, are prepared by treating with strong reducing-agents the corresponding arsonic acids or arsenoxides, described in Specifications 120,383 and 120,384. Examples are given of the preparation of p-arsenophenylglycine-bis -m<1>-oxyanilide by reducing the p-arsonic acid of phenylglycyl-m<1>-aminophenol with hypophosphorous acid in the presence of hydriodic acid, or by reducing the corresponding arsenoxide with hypophosphorous acid alone. The following products also are specified :-p-arsenophenylglycine - bis-p<1>-oxyanilide, 4-arsenophenylglycine-bis - 3<1>-carboxamido-4<1>-oxyanilide, p-arsenophenylglycine-bis-m<1>-sulphonamidoanilide, parsenophenylglycine - bis-p' - sulphonamidoanilide, p-arseno-o-tolylglycine-bis-m<1>-oxyanilide. The products are soluble in aqueous alkalies.
Patent GB-257049-A (GB)
Title: Combined fallbar, trivet and fire guard for stove
IPC: F24B1/193
Filed: 1925-06-23
Abstract: 257,049. Rice, P. P., Rice, A. H., Rice, C. L., and Rice, J. C. June 23, 1925. Grates; guards; trivets. - A double fallbar comprises a bottom portion formed with pins D pivotally mounted in sockets E, F in the side standards of the grate, and a top portion having pins A engaging in a slot at each end of the top of the bottom portion. When the bottom portion is in the vertical position, as shown in Fig. IV, the top member may occupy any one of the positions indicated by a, b, &c. in the first two of which it forms a trivet projecting away from and over the fire respectively, and is held by a pin B which engages recesses formed in brackets J on the bottom member. By lowering the bottom member to the horizontal position shown in Fig. V, an extended fire for wood logs is obtained, the top member forming a guard. The top member may be folded down on to the bottom member to form a low outwardly-extending trivet. The double fallbar may be removed to leave a simple barless fire.
Patent GB-409145-A (GB)
Title: Improvements in or relating to apparatus for producing sudoriferous vapour baths
IPC: A61H33/06
Filed: 1933-06-07
Abstract: 409,145. Vapour baths. DIENA, J., 9, Rue du Faubourg PoissonniÞre, Paris. June 7, 1933, No. 16344. Convention date, June 7, 1932. Addition to 355,289, [Group I]. [Class 81 (i).] The apparatus described in the parent Specification is modified by the provision of an air-admission regulating-device comprising air-inlets 11 and a coacting ring 3, of an adjustable outlet 19 for accumulated hot air and vapour, and of a sliding member 17 adapted to close successively the steam-outlets 7, the latter member replacing the stop-valves described in the parent Specification. The members 3, 19 and 17 may be operated from a distance, for example by a flexible cable.
Patent GB-673974-A (GB)
Title: Improvements in poultry carcase marking tags
IPC: G09F3/04
Filed: 1949-06-21
Abstract: 673,974. Tag fasteners. PARSONS, F. C. June 13, 1950 [June 21, 1949], No. 16463/49. Class 73. A sheet metal tag for attachment to the skin of the breast of poultry without damage thereto comprises a dished body portion 1 having an aperture 7 at one end. A tongue 10 free to bend about the body portion at 15 has two parts joined by a crease line 11 and at an angle to the body portion. When the tag is compressed to straighten the parts of the tongue, the point 14 enters the aperture 7 forcing the skin therethrough and the parts pass the dead centre at 11 and become locked. Ridges 12, 13 may strengthen the tag longitudinally. Instead of the aperture 7 a recess may be stamped in the body 1. A crease may also be formed at the bend 15.
Patent GB-1097884-A (GB)
Title: Production of ethylene
IPC: C07C15/56
Filed: 1965-04-20
Abstract: Ethylene is obtained by reacting ethane with oxygen and hydrogen chloride in the presence of a siliceous material or activated alumina or activated alumina supporting manganous chloride, calcium chloride or lithium chloride. Reaction is effected at 390-650 DEG  C. with a mol ratio of ethane : hydrogen chloride : oxygen of 1 : 0.5 : 0.2 to 1 : 2 : 1 and a contact time of 1-30 seconds; the oxygen may be added as air.  Preferably the catalyst is fluidized, an inert gas being added if necessary, the oxygen and hydrogen chloride being introduced from below and the ethane 5-20% of the reactor length above. Preferred siliceous catalysts are silica gel, quartz, sand, diatomaceous earth, pumice, garnets, zircons, micas and silicates of iron, cobalt, nickel or manganese preferably supported on silica gel, pumice, kieselguhr or fuller's earth.