baber/WOPTO huggingface dataset:
Patent GB-660447-A (GB)
Title: Improvements in the production of copper complex compounds of o.o-dihydroxyazo dyestuffs
IPC: C09B45/01
Filed: 1949-10-14
Abstract: Copper derivatives of o : o1-dihydroxy-azo dyestuffs are obtained by treating o-monohydroxy-azo compounds (with an unsubstituted o1-position) with oxidizing agents in a slightly acid medium in the presence of at least an equivalent amount of copper salts.  The starting materials may be derived from aromatic or heterocyclic diazonium salts coupled with phenols, naphthols or pyrazolones, and may contain sulphonic or other solubilizing groups; dis- and poly-azo compounds are included.  Hydrogen peroxide, alkali peroxides, perborates and percarbonates, organic peracids, acyl peroxides and chromic acid are suitable oxidizing agents, or alternatively anodic oxidation may be used.  The copper salt may be the chloride, sulphate or acetate or a cuprous salt.  The monohydroxy-azo compound may be dissolved in water or an organic solvent (e.g. acetic acid, ethanol, butane-1 : 4-diol) or a mixture of these.  The products may be used for dyeing leather, wool, cotton or rayon.  They may be decoppered (e.g. with mineral acid or alkali sulphide) and converted into other metal derivatives, such as chromium, or afterchromed on the fibre. Examples show the treatment of the following dyestuffs: naphthionic acid-->1 - naphthol - 3 -, 4 - and 5-sulphonic acids, -->2-naphthol-4-, 5-, 6- and 7-sulphonic acids and -->1-(41-sulphophenyl)-3 - methyl - pyrazolone; 2 - naphthylamine - 6-sulphonic acid-->1-naphthol-4-sulphonic acid and-->2 - naphthol - 6 - sulphonic acid; 1-and 2 - naphthylamines-->1 - naphthol - 3 : 8-disulphonic acid; sulphanilic acid-->p-cresol; 4-nitroaniline-2- and 3-sulphonic acids and 2-and 3-nitroaniline-4-sulphonic acids-->p-cresol and other o-coupling phenols; 2 : 4-dinitroaniline-->2-naphthol-3 : 6-disulphonic acid; 3 - chloraniline-->2 - naphthol - 6 : 8 - disulphonic acid and -->2-naphthol-6-sulphonic acid; 1 - naphthylamine - 5 - sulphonamide--> b -naphthol; 3- and 4-nitroanilines-->resorcinol\sMmetanilic and sulphanilic acids; benzidine\sQ1 - naphthol - 3 : 8 - disulphonic acid; and m- and p-phenylene diamines and 1 : 5-naphthylene diamine\sQ2-naphthol-3 : 6-disulphonic acid.  Specification 478,966 is referred to.
Patent GB-991276-A (GB)
Title: Improvements relating to multi-tiered rack units and the like
Inventor: JAMES DAVID MALDON
IPC: A47B55/02
Filed: 1963-07-03
Abstract: 991,276. Rack stands. BEANSTALK SHELVING Ltd. April 20, 1964 [July 3, 1963], No. 26423/63. Addition to 799,834. Heading A4H. In a modification of the rack assembly of the parent Specification the bearing member is replaced by an assembly including tie bolts 7 and nuts 8 connecting the posts 4 with the lower corners of the trays.
Patent GB-1001615-A (GB)
Title: Concentrating nitric acid
IPC: C01B21/44
Filed: 1962-07-10
Abstract: Nitric acid in aqueous solution may be concentrated by dissolving in said solution a nitrate of a Group IA metal having an atomic weight heavier than potassium and thereafter removing vapours from said solution.  The added nitrates act by shifting the azeotropic point upwardly from 68% for HNO3, water evaporating more readily.  The process may be operated in conjunction with salts which depress the azeotropic point.  Thus vapours evaporated from an evaporator and containing more than 68% HNO3 may be contacted in a dehydrator with downwardly flowing Mg(NO3)2, water being extracted from the vapours and a stream even stronger in HNO3 passing overhead.
Patent GB-245070-A (GB)
Title: Improvements in shrink-head casings for ingot molds
IPC: B22D7/10
Filed: 1925-10-22
Abstract: 245,070. Chapin, F. H. Dec. 29, 1924, [Convention date]. Drawings to Specification, Moulds; mould materials.-A shrink-head casing for ingot moulds is made from cement and slag and lined with a material neutral in respect to the molten metal. The casings are made in ordinary cement moulds, four parts of blast furnace slag being used to one part of Portland cement. The casings are lined with a watersludge made from loam, fireclay, and silica flour, or from a binder sold under the registered Trade Mark " Goulac," which is stated to consist of Al2O3, Fe2O3. Mn2O3-0.9 per cent; CaO-2.7 per cent; MgO-2.18 per cent; organic sulphur 3.89 per cent; sodium, potassium, lithium and barium traces; the balance being composed of carbon, hydrogen, oxygen, and nitrogen, and may contain cellulose from sulphite-pulp liquor. The lined casings are then quickly dried by waste hot gases.
Patent GB-1467311-A (GB)
Title: Elongated bath for use in the electro-deposition of metal-
IPC: C25D17/02
Filed: 1974-06-14
Abstract: 1467311 Elongated electrolytic cells LAMINOIRS A FROID DE THIONVILLE 14 June 1974 [19 Sept 1973] 26569/74 Heading C7B An elongated cell 1 for the continuous electrodeposition of metal, e.g. Ni, Cr or Cd, on metallic pieces, comprises two end members 3 and a plurality of intermediate members 2 placed separately on supports 4 capable of absorbing slight variations of length of the intermediate members which occur when they become heated, all the members having flanged ends which are bolted to one another with an intermediate elastic, e.g. rubber, gasket 17 compressed therebetween. The cell members may be formed by a folded metal sheet 7 welded at their ends 7a to flanges 8 perforated by holes for bolts 18. The gasket may be of circular cross-section or a tube. Supports 4 may be provided with screw jacks 5 for supporting feet 6 of the members 2. The pieces to be coated are moved by conveyer 13.
Patent GB-1408504-A (GB)
Title: Attitude stabilization system
IPC: B64G1/36
Filed: 1973-06-04
Abstract: 1408504 Automatic control of space vehicles T R W Inc 4 June 1973 [29 June 1972]  26585/73 Heading G3R [Also in Division G4] The attitude of an orbiting space vehicle is stabilized in respect of spin, roll and yaw axes by a system which changes the momentum of a source along each axis in response to attitude errors measured along the pitch and roll axes only. The source of momentum is a spinning wheel 21 whose axis corresponds to the pitch axis of the vehicle, mounted in gimbals 24, 25 pivoted on the roll and yaw axes respectively. Momentum is changed, and hence vehicle attitude corrected by reaction, by controlling spin velocity and orientation of the gimbals by electric motors 22, 27 and 26 respectively. Fig. 3 is a block diagram of the control system; the speed of the wheel is controlled by pulses from 33 in response to comparison of the wheel speed from tachometer 23 (plus a bias speed signal added at 34) with the pitch error signal #. Amplifier 35 is non-linear in that its gain is higher for signals above a threshold than below it. Roll and yaw gimbals are both controlled by logic circuits 60, 60a from the roll error signal. Details of these logic circuits are given, Fig. 6 (not shown); they solve equations which are given (but not derived) in the Specification. If the wheel speed or gimbal positions reach limiting values thrusters 12a, 12b are operated for a finite time at intervals determined by a clock 54 to "unload momentum" in the appropriate direction. 12a is for pitch; 12b is for roll and yaw, which interchange every quarter of an orbit round the earth. Alternatively, the thrusters may be replaced by current carrying coils which react with the earth's magnetic field, Fig. 4 (not shown). Anticipated deviations may be "modelled" by a resolver circuit, Fig. 5 (not shown), which feeds appropriate correcting signals in a "feed-forward" manner. The sensors are not described but are said to be infrared devices or horizon scanners.
Patent GB-739218-A (GB)
Title: Disc type frictional engagement mechanism
IPC: F16D13/04
Filed: 1953-09-28
Abstract: 739,218. Friction clutches. MERRITT, R. H. Sept. 28, 1953 [Oct. 30, 1952], No. 26614/53. Class 80 (2). [Also in Group XXXIV] Actuation of a single disc type clutch is initiated by applying fluid pressure to cylinder units 47, the pistons 48 of which act through arms 50 to cause primary actuating means comprising segmental friction blocks or supporting members 15 and 16 to grip the disc 17 between them. The friction torque of the disc causes a limited rotation of the members 15 and 16 so that arms 53 secured to the member 15, Fig. 7, act to rotate T-shaped actuating members 56, which by reaction against the fixed support structure 13 causes secondary actuating means comprising further segmental clutch members 14, disposed intermediate the members 15 and 16; to also grip the disc. To prevent grabbing, a friction lining of low frictional coefficient may be used on the clutch members.
Patent GB-1123848-A (GB)
Title: Ignition systems
IPC: F02P9/00
Filed: 1967-06-09
Abstract: 1,123,848. Ignition systems. FORD MOTOR CO. Ltd. June 9, 1967 [July 18, 1966], No. 26644/67. Heading F1B. In an ignition system a primary circuit includes a battery 27, a primary winding of an induction coil 10, a switch 33 and a voltage and current limiting arrangement, a secondary circuit includes a secondary winding 12 of the induction coil and an ignition device for igniting the fuel air mixture and the voltage and current limiting arrangement is such that it limits to the value of the terminal voltage of the battery the peak transient voltage induced in the secondary winding when transformed to the primary winding and it has negligible impedance when this peak transient voltage is reached. As shown the arrangement comprises a parallel circuit of a resistor 29 and a saturable inductor 30 connected in series with the battery 27 and primary winding. The resistance of the resistor may be selected to critically damp voltage transients in the primary circuit and the saturable inductor may be designed to reach saturation when the voltage induced in the secondary winding transformed to the primary winding reaches the terminal voltage of the battery. An ignition system as claimed in Specification 1, 075, 889 may incorporate the features set out above. The switch may comprise a transistor the base of which is connected to contacts which when closed render the transistor conducting. A Zener diode may be connected across the transistor. In an alternative embodiment the device 41 is omitted.
Patent GB-190834-A (GB)
Title: An implement or appliance for use in gathering fruit
IPC: A01D46/247
Filed: 1921-10-10
Abstract: 190,834. Thomason, C. G. Oct. 10, 1921. Reachers and long-arms for picking fruit comprise a V-shaped member a fixed rigidly to a red b carried adjustably by a rod f which carries also a rigid ring c greater in diameter than the length of the member a, to which is attached a flexible shoot d long enough to reach to the operator's hand.
Patent GB-303843-A (GB)
Title: Fish frying or vegetable cooking basket
IPC: A47J36/22
Filed: 1927-10-10
Abstract: 303,843. Davies, T. O. Oct. 10, 1927. Heating and cooking vessels.-A fish. frying or vegetable-cooking basket comprises a wire helix 1 forming the sides, merging into a flat spiral 2 forming the base. The coiled wire is bound to stiffening wires 5, 6, which are hooked to the upper stiffening ring 3 and looped in U-form around the lower reinforcing ring 4. The handle 7 is continuous with the ring 3 and is secured to the side wall and also looped around the ring 4. A wire hook 8, adapted to engage the rim of the container pan, is secured to the side wall and extends partly along the base.
Patent GB-835324-A (GB)
Title: Earth-working blade for a rotor of a power driven cultivating machine
Inventor: HOWARD ARTHUR CLIFFORD
IPC: A01B33/08
Filed: 1957-08-24
Abstract: 835,324. Agricultural implements. ROTARY HOES Ltd. Aug. 21, 1958 [Aug. 24, 1957], No. 26781/57. Class 6(1). An earth-working blade for a rotary cultivator has the form of a flat plate which has been bent transversely to have one side edge 10a, 11a straight and an opposite side edge 12 cranked, the end portion 10 of the blade being arranged to be attached to a rotor shaft 15 so that the plane of the end portion is normal to the axis of the shaft and so that the straight side edge forms the leading edge of the blade, the end portion 11 of the blade being oblique to the axis of the shaft.
Patent GB-337881-A (GB)
Title: Improvements in and relating to milliampere and/or voltage meters
IPC: G01R5/14
Filed: 1929-09-04
Abstract: 337,881. Provincial Incandescent Fittings Co., Ltd., Webber, J., and Cooper, J. Sept. 4, 1929. Electromagnetic current and pressure meters ; indicating faults. - A voltmeter of the watch case type has a battery and valve holder incorporated within its casing, and for testing nigh voltage circuits a resistance coii is also incorporated within the casing. For use with radio apparatus, the meter is provided with multiple scales of high and lcw voltages as well as milli-ampere readings for filament &c. tests. In one construction, Fig. 2, the battery c is housed in a tube b and contacts with the casing at e and with a blade contact f connecting one end of the instrument coil h, the other end of the coil being connected to a blade contact k by way of lead j. Valve filament sockets o are connected to contacts q, r in series with the casing and lead j. Two closing caps for the battery may be provided in the casing a. Flexible leads or terminal posts may be employed for making the outside connections. In modifications the battery is clipped on an internal partition to which the valvs sockets are secured, and a resistance coil is incorporated.
Patent GB-390189-A (GB)
Title: Improvements in or relating to heat insulating and sound proofing materials
IPC: C04B28/26
Filed: 1931-09-26
Abstract: Cellular anhydrous sodium borate silicate, which has been dried and baked without fusion at 900-1400 DEG  F., is used as sound and heat insulating material.  The porous material is made by drying and baking a mixture of alkali borate, alkali silicate and water. Boric acid or borax in powder or solution is added to an alkali silicate solution and the mixture dried, e.g. by spraying into a hot gas until it contains 10-35 per cent of water, and then baked in a mould; or alkali silicate solution is dried until it contains 10-35 per cent water, comminuted, mixed with powdered alkali borate and baked, e.g. in pellets agitated to keep them separate.  The mixture may be dried to a glassy solid with 10-35 per cent water and baked in a rigid mould allowing escape of vapour but restraining the solid to a predetermined size and specific gravity.  U.S.A. Specification 1,724,185 is referred to.ALSO:Cellular anhydrous sodium borate silicate which has been dried and baked without fusion at 900-1400 DEG  F. is used as sound- and heat-insulating material.  The porous material is made by drying and baking a mixture of alkali borate, alkali silicate and water. Boric acid or borax in powder or solution is added to an alkali silicate solution and the mixture dried, e.g. by spraying into a hot gas until it contains 10-35 per cent water, and then baked in a mould; or alkali silicate solution is dried until it contains 10-35 per cent water, comminuted, mixed with powdered alkali borate and baked, e.g. in pellets agitated to keep them separate. The mixture may be dried to a glassy solid with 10-35 per cent water and baked in a rigid mould allowing escape of vapour but restraining the solid to a predetermined size and specific gravity. The cellular material may form structural material reinforced by fibrous material, e.g. asbestos or glass wool, or by perforated sheet metal, or metal wool or shavings, and coated with waterproof fabric or paper, cellulose ester, or sprayed with metal.  The cellular material may be mixed with thermoplastic material, rubber, asphalt emulsion, waxes, resins, gums, phenolformaldehyde, glycerine-phthalic acid and other condensation products.  Pellets of the cellular material are embedded or coated with thermoplastic or cementitious material, and finally covered with rubber solution, varnish, paint or glaze. U.S.A.  Specification 1,724,185 is referred to.
Patent GB-532995-A (GB)
Title: Improvements in and relating to ball bearings
IPC: G01R11/12
Filed: 1939-09-30
Abstract: 532.995. Ball-bearings. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 30, 1939, No. 26931. Convention date, Sept. 30, 1938. [Class 12 (i)] An enclosed end-thrust ball-bearing suitable for supporting the vertical spindle of a rotating disc watt-hour or other integrating meter com-. prises a hardened steel ball 19 arranged between two cupped jewels 20, 21 carried respectively by an extension 18 of the meter spindle 12 and a screw 17 threaded into a bracket on the meter base, the upper end 30 of the screw 17 being threaded to receive a sleeve 22 fitted at the top with a ring 31 of tough vibrationabsorbing g sound - deadening material having an internal opening of slightly greater diameter than a neck 28 on the extension 18 but of smaller diameter than the end portion 29 carrying the jewel 20. The ring 31 may suitably be formed of a resin-impregnated fibre consisting of a laminated fabric impregnated with a binder composed of a phenolic condensation product. The sleeve 22 is formed with an internal shoulder 33 between the positions normally occupied by the jewels 20, 21 of such a diameter to ensure that the ball drops into the cupped portion of the jewel 21. The extreme upper parts of the jewel cups may be conical or be reversely curved. The lower part of the meter spindle may be bifurcated to provide a spring grip for the stem portion of the extension 18. When the screw 17 is unscrewed the extension 18 is drawn out of the spindle by the engagement of the ring 31 with the end portion 29. Suitable dimensions are stated in the Specification.
Patent GB-389752-A (GB)
Title: Improvements in or relating to bolt anchors
IPC: F16B13/06
Filed: 1932-09-28
Abstract: 389,752. Screw sockets. RAWLPLUG CO., Inc., 98, Lafayette Street, New York, U.S.A.-(Assignees of Gelpcke, A. W. ; 386 Sterling Place, Brooklyn, New York, U.S.A.) Sept. 28, 1932, No. 26943. Convention date, Sept. 28, 1931. [Class 89 (i).] A screw socket comprises two conical end pieces 2, 3 of aluminium connected by a collapsable section 4, this being surrounded by a lead sleeve 5. The device is secured into the hole 10 by striking the end flange 2. In a modification the inner core section is made of steel and is threaded to receive a screw.
Patent GB-868784-A (GB)
Title: Improvements in or relating to electromechanical transducer system
IPC: B06B1/06
Filed: 1957-08-27
Abstract: 868,784. Electromechanical transducers. GENERAL ULTRASONICS CO. Aug. 27, 1957 [Aug. 27, 1956], No. 26984/57. Class 40 (4). An electromechanical transducer is sandwiched between two quarter-wave plates of different densities. The sandwich is put under compression to prevent vibration overtaxing the coupling between transducer and plates. The plate of lower density gives a higher surface velocity and acts as an efficient transmitter. As shown in Figs. 1 and 3, four quartz or barium titanate discs are placed between square sectioned blocks 10 and 11 and are compressed by a central bolt 28. Compression may be effected by bolts passing through side flanges on the blocks. The block 10 may be of steel or brass while the block 11 may be of aluminium or magnesium or an alloy of these of not less than 70%. The piezo-electric discs may have electrodes and be cemented to the blocks by an epoxy resin in which event conductors from the electrodes to the blocks are provided. The piezo-electric discs may be replaced by a single magnetostrictive element, shown in Fig. 8, which may be laminated or solid and may be a ferrite. Specification 145,691 is referred to.
Patent GB-880950-A (GB)
Title: Improvements in cigarettes
IPC: A24C5/18
Filed: 1960-08-04
Abstract: 880,950. Cigarette-making machines. BRAUNSTEIN, M. Aug. 4, 1960 [May 27, 1959], No. 27022/60. Class 130. A cigarette is formed with a bore 3, Fig. 1, during production on a continuous rod machine, Fig. 2, by wrapping the tobacco around a continuous wire 14 stretching from a point prior to the wrapping apparatus 17 to a point adjacent the cut-off. The tobacco shower is parted by a plate 9, Fig. 4, to initiate formation of a groove in the tobacco stream which is compacted by a ribbed roller 11. The wire 14 is carried by a bracket 13 which also supports a nozzle 16 which moistens the wire and the surrounding tobacco whereby the wall of the bore hardens during the drying stage following pasting of the wrapper and prevents the bore collapsing. In a modification, Fig. 7, a thin strip of paper 20 is fed into the groove in the tobacco stream and wrapped around the wire to form a lining for the bore.
Patent GB-1097751-A (GB)
Title: Improvements in and relating to article spacing apparatus
Inventor: WEAVER REGINALD
IPC: B65G47/29
Filed: 1963-07-09
Abstract: 1,097,751. Discharging articles from conveyers; discharging articles from shoots. MANUFACTURERS EQUIPMENT CO. Ltd. July 8, 1964 [July 9, 1963], No. 27070/63. Headings B8A and B8S. An article spacing device 9, e.g. for discharging articles 6 from a conveyer 2 one at a time, comprises a member 10 having an article conveying surface 12, the member 10 being pivoted at 14 for movement between a raised position in which a nose 20 stops articles 6 from leaving the conveyer 2 and a lowered position in which articles can pass on to the device. The member 10 is moved by a pneumatic, hydraulic or electromagnetic device 16, and sensing means 18 which may be a pneumatic roller valve or limit switch, or a photo-electric cell or sonic detector, is provided for sensing the presence of an article 6a on the member 10 and actuating the device 16 to raise the member 10. The latter may be lowered by a timing device or a manually operated switch. The conveyer may be a flow rack, shoot, gravity or powered conveyer.
Patent GB-988076-A (GB)
Title: Improvements relating to core-blowing machines
Inventor: HAIG DOUGLAS
IPC: B22C15/24
Filed: 1962-07-13
Abstract: 988,076. Core-making machines. STONEWALLWORK Ltd. July 19, 1963 [July 13, 1962], No. 27093/62. Heading B3F. In a core blowing machine of the hot box type the blow head 4 is moved between a position beneath a hopper for filling with a sandresin mix through a sleeve 22, and a blow position above the core box 3 by a pneumatic cylinder 14, and blowing air which is supplied to a chamber 29 through a port 30 is admitted to the blow head through a valve 31 operated by a cylinder 35. An exhaust valve 37 is closed as the inlet valve 31 opens.