baber/WOPTO huggingface dataset:
Patent GB-1438381-A (GB)
Title: Process for producing a corrosion resistand duplex coating
IPC: C23C26/00
Filed: 1973-05-21
Abstract: 1438381 Coating by plasma spraying UNION CARBIDE CORP 21 May 1973 [22 May 1972] 24046/73 Heading C7F [Also in Division B2] A substrate of e.g. steel, Al, Ni, Co, Cu Cr or alloys thereof are plasma sprayed with a mixture of at least two metals, alloys or intermetallic compounds, then coated with a layer of metal, alloy, intermetallic component, oxide, carbide, nitride, boride, silicide or cermet, and heating either before or after the application of the top layer in e.g. inert or reducing atmospheres or a vacuum. The top coating may be Ni, Co, Cr, Au, Ag, Pt, Pd, Rh, Rb, WC-Co, Al 2 O 3 , SiO 2 , Cr 2 O 3 , HfO 2 , Be O, ZrO 2 , SnO 2 , Mg O, Y 2 O 3 , rare earth oxides, Ti O 2 , Mg Zr O 3 , Si C, B 4 C, Hf C, Nb C, Ta C, Ti C, Zr C, Mo 2 C, Cr 3 C 2 , WC, Ti B 2 , Zr B 2 , Nb B 2 , Mo B 2 , WB 2 , Ta B 2 , Cr B, Al N, Si 3 N 4 , Ti N, Zr N, Hf N, VN, NbN, TaN, Cr N, Mo Si 2 , Ta Si 2 , WSi 2 , Ti Si 2 , Zr Si 2 , V Si 2 , Nb Si 2 , Cr Si 2 , B 4 Si 2 . The undercoat layer may Ni, Al, Co, Fe, Cr, Cu, Mo, W, Nb, Ta, Ti, Sb, Ca, Mn, Zr, V, Hf, Mg, Zn, Pd, Ni-Cr, Fe-Cr, Co-Cr, Fe-Cr-Rare earths Ni-Cr-rare earth, Co-Cr-rare earths, Cu-Al.
Patent GB-1299593-A (GB)
Title: Engine starting systems
Inventor: ALLPORT MAURICE JAMES
IPC: F02N11/08
Filed: 1969-05-12
Abstract: 1299593 Starting prime movers JOSEPH LUCAS (INDUSTRIES) Ltd 13 April 1970 [12 May 1969] 24054/69 Heading H2H  An engine starting system comprises an electric circuit having means for breaking the circuit when the engine speed is above a predetermined value together with delay means operable when the engine speed falls below the predetermined speed to maintain the circuit broken for a predetermined time. To start the engine a switch 25 is closed thereby illuminating a warning lamp 30 from a battery 5, the battery voltage being applied to a Zener diode 21 causing it to break down to turn on transistor 15. Switch 13 is now closed to energize a relay winding 14 by way of the transistor 15, the contacts 17 of the relay closing to energize the starting solenoid to start the engine. As soon as the engine starts an alternator 6 produces an output thus extinguishing the lamp 30, the alternator output being applied to a diode pump circuit 29, 31, 33 to produce a voltage across a variable resistor 34 which increases with increasing engine speed, this voltage being applied to the base of a transistor 22. When the base voltage reaches a given value at a predetermined engine speed transistor 22 conducts to turn off transistor 15 so de-energizing relay 14 and hence the starting solenoid 18. Should the engine speed fall the voltage across the resistor 34 falls and transistor 22 will tend to turn off. A capacitor 36 which has been charged by way of a diode 35 will however maintain the transistor 22 conductive for a time sufficient to allow the engine speed to fall to zero. Thus it will not be possible to re-energize relay 14, and hence starting solenoid 18, until a predetermined time after the engine speed has fallen below the predetermined value.
Patent GB-986344-A (GB)
Title: Improvements in or relating to containers for radioactive material
Inventor: AUPETIT ARMAND
IPC: G21F5/12
Filed: 1961-07-04
Abstract: 986,344. Shielded containers for radio-active material. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 4, 1961 [July 6, 1960], No. 24094/61. Heading B4Q. A container for transporting spent fuel elements comprises inner and outer stainless steel chambers 16, 17 separated by a lead mass 18, the chamber 16 receiving a basket (Figs. 1, 2, not shown) formed of vertical aluminium tubes accommodating the fuel elements. The container is loaded under water and after insertion of the basket a cover 19 of stainless steel is locked in position to compress a packing 20. A further cover 24 of lead lined with stainless steel is secured by clamps (Fig. 6, not shown) to compress a packing 26. The cover 24 contains a cavity 28 opening at 29 to the cover exterior and serving to receive the entrapped air. Two exhauster tubes 36, 37 opening at their lower ends into the bottom and top of the chamber 16 permit the water to be drawn off and replaced before unloading, these tubes being normally sealed at their upper ends by plugs (Fig. 5, not shown). The container is removably mounted on a base plate 31 lined with a rubber cushion.
Patent GB-1397782-A (GB)
Title: Oxide varistor
IPC: H01C7/112
Filed: 1972-05-23
Abstract: 1397782 Semi-conductor varistors TOKYO SHIBAURA ELECTRIC CO Ltd 23 May 1972 [24 May 1971 10 June 1971 1 Feb 1972] 24112/72 Heading H1K A varistor comprises a basic composition which in 100 mol per cent contains 87 to 12 mol per cent ZnO, 1 to 30 mol per cent of Sb 2 O 3  and 12 to 87 mol per cent of at least one metal oxide MeO selected from the group MgO, CoO, NiO, BaO, SrO, CaO, MnO, FeO, CuO; with an additive of Bi 2 O 3  to the extent of 0À5 to 10% w/w of the basic composition, the metal oxide component forming at least 14% mol of the base composition when it consists of CoO together with BaO and/or MnO. In preparation the oxides are weighed out, mixed in a ball mill, sintered at 600-850 C., and again ball milled; and may be derived from compounds oxidized by heat, e.g. hydroxides, carbonates, oxalates. The powder is admixed with, e.g. polyvinyl alcohol binder, disc moulded under pressure, and sintered in air at 1000 to 1400 C. Electrodes of Ag or In-Ga alloy may be applied, and it is shown that the nonlinear characteristics are derived from a large number of agglomerations of the boundary phases of sintered fine crystals (Figs. 8a, 8b, not shown). Numerous examples are quoted, and the voltage current characteristics related to the proportions of Sb 2 O 3  with different metal oxides MeO, to the proportions of ZnO to MeO, and to the proportion w/w of Bi 2 O 3  are given (Figs. 1 to 7, not shown).
Patent GB-649485-A (GB)
Title: Apparatus for phase discriminating between electric currents of commensurable frequencies
IPC: G01R23/02
Filed: 1948-09-14
Abstract: 649,485. Automatic control systems. LOEB, J. M. Sept. 14, 1948, No. 24139. Convention date, Oct. 28, 1947. [Class 38 (iv)] [Also in Group XXXVI] Phases of currents having different but commensurable frequencies are compared by means of a flip-flop circuit. The discriminator shown is actuated by the phase difference between two sinusoidal voltages U1, U2 having frequencies of 200 and 300 cycles per second. The voltages U1, U2 are transformed into pulses by pulse generators 7, 8 and are applied to a flip-flop circuit FF constituted by two triodes 9, 10 and trigger circuits 1, 2. A change-over switch is formed by an armature 15 actuated by electromagnets 13, 14 for earthing contacts 16, 17 according to whether the pull of the electromagnet 13 or 14 is the greater. An additional winding 18 of the magnet 14 permits the armature to be biassed towards 17 if the average currents in the electromagnets 13, 14 are equal, as is the case when U1 is lagging, or towards 16 if the current -in the circuit 1 is five times more than in the circuit 2, as is the case when U1 is slightly leading. The contacts 16, 17 may actuate an indicator to show whether the voltage U2 is leading or lagging with respect to the voltage U1, or the contacts may be used to actuate a motor mechanically connected to a phase corrector.
Patent GB-1307857-A (GB)
Title: Former for use in a pipe fitting tool
IPC: B21C37/29
Filed: 1970-05-19
Abstract: 1307857 Making pipe fittings F DAVIES 19 May 1970 [23 May 1969] 24234/70 Headings B3A and B3J Spinning.-A former 1 for a tool for flanging a hole 8 in a pipe 9 has a recess 11 in its head 7 enabling insertion of the head through the hole, the flange being formed by rotation and withdrawal of the head. The former is attached by a pin (3), Fig. 1 (not shown), to a holder 2 which is fixed to a screw 13 by a tommy bar 17. A saddlenut 12 receives the screw 13 and provides for endwise movement of the former when the bar 17 is turned. The hole 8 is preferably slightly elongated. For stainless-steel pipes 9, the former may be used in a tool which allows independent rotation and withdrawal by lifting handles. Lubrication may be provided through apertures in the tool as the operation proceeds, and the operation may be facilitated by annealing the pipe. The tool may be modified for use without the holder 2, or with a bayonet connection, and the short sides of the head 7 may be segments of a sphere or cone.
Patent GB-517995-A (GB)
Title: Improvements in and relating to apparatus for manufacturing filaments
IPC: H01K3/04
Filed: 1938-08-18
Abstract: 517,995. Endless-chain conveyers. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 18, 1938, No. 24354. Convention date, Aug. 18, 1937. [Class 78 (i)] [Also in Groups II, III and XI] A machine for making electric lamp filaments comprises coiling apparatus for producing separate. coiled filaments, furnaces for heattreating the filaments mounted adjacent the coiling apparatus, a conveyer for carrying each filament separately to a predetermined position before the furnaces, reciprocating apparatus for moving the filaments into and out of the furnaces and means for transferring the filaments from the conveyer to the reciprocating apparatus. The apparatus shown comprises a device indicated at 11 of the type described in Specification 264,805, [Class 39 (ii)], for producing separate coiled coil filaments and a chain conveyer 20 which carries them separately through a cleaning device 44 to a group of heat-treatment furnaces. The conveyer carries buckets 21, each of which, as it comes below a stationary bucket 19 into which the filaments fall from the coiler, strikes a pivoted portion 23 of the latter bucket and so causes it to open and deposit the filament in the chain bucket. The upper run of the chain passes through apertures in the walls of the cleaning device. When eight buckets each containing a filament have been brought opposite the heating devices a pivoted portion of each bucket is swung away from the other portion by a finger mounted on a rock-shaft operated through link mechanism 55, 56, 57 by a cam 134, the filaments falling from the buckets into boats in which they are carried into the heat-treatment furnaces.
Patent GB-243987-A (GB)
Abstract: 243,987. Mansfeld, J., and Cruse, J. May 15, 1925. No Patent granted (Sealing fee not paid). Baking and like tins. -Relates to securing means for the expansible bands of cake moulds and like articles. Semicircular levers dare pivoted at e to the ends of the mould, &c., their free end being mounted on pivot pins g so as to lie between a pair of discs f rotatable on a pivot h. By turning the discs into the position shown in Fig. 1, the mould contracts and the pins g pass the dead centre position, preventing inadvertent opening of the mould
Patent GB-889453-A (GB)
Title: Improvements in or relating to cam members
Inventor: PIGNONE JOSEPH
IPC: F16H25/16
Filed: 1959-07-16
Abstract: 889,453. Automatic temperature-control systems. DAYSTROM Inc. July 16, 1959, No. 24503/59. Class 38 (4). [Also in Group XXIV] A device for recording, indicating, controlling, or operating alarms relating to, factors such as altitude, temperature, flow, pressure, weight, or output of tachometer generators, photo-cells or resistance thermometer bulbs, employs one or more cams 156 adjustably secured side-by-side on a shaft in a manner described in Group XXIV. As shown applied to the control of an electric heating element 14 in a furnace, the output of a thermocouple 23 is fed to a balancing potentiometer 161, energized by a constant potential battery 27, and also to a 60-cycle vibrator 35 and transformer 36, the output of which, amplified at 37, is fed to one winding 38 of a two-phase motor 39, the other winding 40 of which is energized by a 60-cycle source. Any change in temperature from a normal stable condition causes the motor 39 to rotate appropriately and shift the potentiometer slide 34 to a fresh balance position at a new temperature which is indicated at 58 on a temperature scale 59. The motor 39 is also mechanically connected at 61 to cams and a brush contact for a control switch as described in Specification 874,317, the effective operating point of which is indicated by a second pointer 52. Through a belt or chain the motor 39 also turns the shaft of the adjustable switch cam assembly 136, the switches, e.g. 60, of which cut off the furnace heater supply at 21, regulate and indicate the temperature, and operate an alarm.
Patent GB-197603-A (GB)
Title: Improvements in and relating to inverted burners for gas or other lighting
IPC: F21V17/00
Filed: 1922-09-11
Abstract: 197,603. Bridgeford, P. S. Sept. 11, 1922. Securing globes to holders.-In a globe-holder for inverted gas or other burners &c., the globe is supported by a band d inside the holder b; the band d is adjustable in diameter and is fixed at one end, the free end being adjustably retained in position by means of a screw g passing through a horizontal slot in the holder b and engaging with a nut f attached to the band. The screw g has attached to it a projection e to enable it to be moved along the slot, and a finger piece s is attached to the holder near the end of the slot to facilitate this movement. At the opposite side of the gallery, on the inside, a slot n is provided through which the band passes in order to retain it in position.
Patent GB-1150291-A (GB)
Title: An Electric Circuit comprising an Electric Appliance, Means for Feeding it from the Mains and an Emergency Power Source from which the Appliance can be Fed in the Event of a Mains Fault.
IPC: H05B41/285
Filed: 1966-06-02
Abstract: 1,150,291. Standby supply systems. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. 2 June, 1966 [2 June, 1965], No. 24722/66. Heading H2H. An electric appliance is fed normally from A.C. mains and on mains failure from an emergency source comprising a battery fed electronic inverter which remains blocked during normal mains operation by a voltage obtained from rectification of the mains, but is not permitted to operate when this voltage disappears unless a second voltage obtained by rectification of the voltage applied to the appliance was present immediately before the mains failure. The appliance e.g. a fluorescent lamp 1 is fed normally through an autotransformer 2 from an A.C. supply 3, 4. From the same supply a transformer-rectifier unit 16 charges a battery 14 through a resistor 24. When the transformer 2 is operating, a capacitor 43 is maintained charged, the potential from which is applied in opposition to a greater voltage across resistor 24 to a transistor or thyristor inverter 15 to prevent it oscillating. On failure of the supply the potential across resistor 24 disappears and that across the capacitor 43 sets the inverter into operation. The inverter preferably operates at a frequency substantially higher than that of the supply. A resonating capacitor 41 passes high frequencies and attenuates low frequencies, and another capacitor 13 serves the dual purpose of diverting high frequencies from the supply and also improving power factor in normal operation. Push buttons 57, 58 may operate the circuit manually.
Patent GB-1414338-A (GB)
Title: Tilting mechanism for tilting the slats of a venetian blind
Inventor: LAGESSON P S
IPC: E06B9/322
Filed: 1973-05-23
Abstract: 1414338 Venetian blinds PERMA SYSTEM AB 23 May 1973 [28 June 1972] 24738/73 Heading E1J An operating mechanism for a Venetian blind includes a first reel 23 for the draw cord, a second, co-axial reel 15 having peripheral recesses for accommodating protrusions (e.g. a ball 33) on the ladder tapes 21 and a plate 19 extending around at least part of the second reel's periphery, and the two reels are clutched together by means of a leaf spring secured to the first reel 23, the spring urging a key 26 into engagement with a recess 32 in the second reel. During raising or lowering of the blind, the draw cord engages around the key 26 and disengages it from the second reel to thereby prevent rotation of the second reel. The first reel 23 is journalled onto a hollow stud 12 engaged around a drive, shaft I, the reel 23 having a wedge keyed through a slot in the stud into a groove in the shaft.
Patent GB-1523683-A (GB)
Title: Acid zinc electroplating bath
IPC: C25D3/22
Filed: 1976-06-15
Abstract: 1523683 Electro-plating zinc MINNESOTA MINING & Mfg CO 15 June 1976 [16 June 1975]  24759/76 Heading C7B Zinc is electro-plated from an acid bath containing 4-100 gpl Zn ion, 15-250 gpl of an ammonium-ion free and chelate-free electrolyte, 2-40 gpl of a nonionic polyoxyakylated surfactant, 0À1-15 gpl of an organic acid, at least 1À0 gpl of boric acid or a soluble salt thereof and optionally 0À05-2 gpl of an organic brightener. Other options include a solubilizer for the acid, an anionic surfactant and a soluble acetate salt. The Zn may be added as a salt or oxide. The electrolyte may be an alkalic salt of hydrochloric, sulphuric and/or fluoboric acid. Suitable surfactants are identified by trade names and are conventional. Acids exemplified are benzoic, octanoic, ethoxylated oleic, nicotinic, cinnamic and N-alkyl sulphonyl glycine. Brighteners exemplified are o-chlorobenzaldehyde, thiophenealdehyde and benzylidine acetone. Operation at pH 3-6À5 at 15-45‹C with a cd of 0À01-15A/dm<SP>2</SP> is specified.
Patent GB-1131731-A (GB)
Title: Automatic landing approach control system for aircraft
Inventor: KRAMER KENNETH CALVIN
IPC: G05D1/06
Filed: 1966-05-06
Abstract: 1,131,731. Automatic control of aircraft. LEAR SIEGLER, Inc. June 3, 1966 [June 14, 1965], No.24760/66. Heading G3R. In an automatic landing system for an aircraft, a roll control surface is controlled by electrical signals, dependent on roll attitude, applied both directly and through a low-pass filter, combined with electrical signals, dependent on displacement from a glide path, applied both directly and through a rate circuit. As shown, D.C. signals from a radio receiver, in response to angular displacement of an aircraft from the centre-line of a localizer radio beam, are applied at 24 so that through a modulator 4, line 34, limiter 8 and servo-amplifier 10 they control ailerons 20 to restore the aircraft to the beam centre-line. A differential component of these signals is derived by a high-pass filter 5 and added through a low-pass filter 6. Gyroscopically derived stabilizing signals dependent on roll and rate of roll are also applied to the aileron control system at 23 and 22 respectively. Stability is further improved by applying the roll signals through a low-pass filter 3 to the input of limiter 8. A steering bar type indicator 40 is provided to permit manual steering of the aircraft to the beam centre-line. Gyroscopically derived signals dependent on yaw rate are applied at 25 and, through a low-pass filter 15 and servo-amplifier 16, control rudder 21. Just prior to touchdown, an altimeter 19 closes a switch 12 so that signals dependent on error in the heading relative to that of the runway, applied at 26, are rendered effective to control the rudder if they exceed a magnitude determined by a dead zone 13. The aircraft is thus aligned with the runway and, upon touchdown, strutoperated switches 18, 14 short out the dead zone device and introduce the localizer signals so that the latter control the rudder during the run after landing.
Patent GB-1207658-A (GB)
Title: Improvements in or relating to vehicle axle suspension arrangements
Inventor: FISCHER BERND
IPC: B60G9/02
Filed: 1969-05-15
Abstract: 1,207,658. Vehicle suspensions. AUTOMOBILWERK EISENACH VEB. 15 May, 1969, No. 24787/69. Heading B7D. A suspension arrangement between a rigid axle 1, bowed at its centre portion 3, and a vehicle body comprises coil springs 8 and two pairs of radius rods 4, 4 and 7, 7, the rods of each pair being planar and inclined with respect to each other defining a roll axis V-W, where V and W are the points of intersection of the axes of each pair of rods. A further roll axis L-L is formed by the line of intersection of the planes containing each pair of rods. The roll centre R is on axis V-W directly below the line joining the centre M of wheels 2, 2<SP>1</SP> journalled to the axle ends.
Patent GB-1419343-A (GB)
Title: Process of and system for printing in colour photography
IPC: G03B27/73
Filed: 1973-05-24
Abstract: 1419343 Colour printing KONISHIROKU PHOTO INDUSTRY CO Ltd 24 May 1973 [25 May 1972] 24800/73 Heading G2A Colour negative film in spliced lengths is passed through stations which sense or measure the film leader, splices, notches between frames, frame size, film base mask density, type of film, and colour and neutral density, information from said stations being stored in a memory and utilized in the printing process. Printing correction values are selected, in dependance on a combination of density measurements, from a preformed list. A combination of density measurements is made using half mirrors 19 and 19', three colour component density determination spheres 20 and 20' and neutral density detector 21. The colour density is measured separately for red, green and blue light transmitted through the whole frame and the central portion thereof. Neutral density is measured separately in a plurality of square areas.
Patent GB-343419-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/20
Filed: 1930-04-10
Abstract: Azo dyes are made in substance or on a substratum, e.g. the fibre by coupling a diazo-, tetrazo- or diazoazo compound free from sulphonic, hydroxy or carboxy groups with 21:31-hydroxynaphthoyl-4-amino-6-chloro-1 : 3-dimethoxybenzene or 21 : 31-hydroxynaphthoyl-4-amino-5-chloro-1 : 2-dimethoxybenzene.  In examples (1) cotton is treated with the 4-amino-6-chloro-1 : 3 dimethoxybenzene derivative and developed with diazotized 3-amino-4 : 6-dichloro-1-methylbenzene; (2) cotton impregnated with the 4-amino-5-chloro-1: 2-dimethoxybenzene and developed with diazotized o-nitraniline.  Other diazo components specified are: 2 : 5- and 2 : 4-dichloraniline, 5- and 6-chlor-2-toluidine, 2-amino-4-chlorodiphenylether, p- and m-nitraniline, 4- and 5-nitro-2-toluidine, 3-nitro-4-toluidine, 4- and 5-nitro-2-anisidine, 1-aminoanthraquinone, 2-phenetole-azoa -naphthylamine, o-aminoazotoluene and 2-chlor-4-nitraniline.  Specifications 6379/12, [Class 2 (iii), Dyes &c.], 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], 193,866, 336,938, and 339,620, [all in Class 2 (iii), Dyes &c.], are referred to.  4-Amino-5-chloro-1 : 2-dimethoxybenzene is made from 4-nitro-5-amino-1 : 2-dimethoxybenzene by replacing the NH2-group by chlorine and reducing the nitro group.