baber/WOPTO huggingface dataset:
Patent GB-440740-A (GB)
Title: Improvements in electrical tele-indicating devices
IPC: G01D5/39
Filed: 1934-07-06
Abstract: 440,740. Electric signalling systems. SCHNEIDER & CIE, 42, Rue d'Anjou, Paris. July 6, 1934, No. 19901. Convention date, Feb. 22. Addition to 428,899. [Class 40 (i)] [See also Group XL] A plurality of indications are communicated to a dis tance by television and are received by a cathode-ray oscillograph by causing the photo-electric current to act on one of the orthogonal electric fields, which deflect the cathode ray. The scan ning lines 1-n are parallel t( the indicating mark transmitted and the picture signals act on the field moving the ray at right angles to the scanning lines. A black line x, y is thus formed at the position of the indicating-mark.
Patent GB-1395985-A (GB)
Title: Method of fracturing a subterranean formation
IPC: E21B43/267
Filed: 1972-04-28
Abstract: 1395985 Fracturing formations DOW CHEMICAL CO 28 April 1972 19930/72 Addition to 1355080 Heading E1F A modification of the process of Specification 1355080 comprises fracturing a subterranean formation penetrated by a well-bore by mixing with an organic liquid a dialiphaticsubstituted orthophosphoric acid ester, wherein the aliphatic radicals are C 1  to C 20  alkyls or C 2  to C 20  alkenyls or alkynyls, and an aluminium compound which reacts with the ester in situ in the organic liquid to provide the aluminium salt of the ester in an amount of from 100 to 400 pounds per thousand US gallons of the organic liquid and injecting the gelled organic liquid into the formation at sufficient pressure to fracture the formation.
Patent GB-1526388-A (GB)
Title: Process and apparatus for the cyclic heating and cooling of processing equipment
IPC: B30B15/34
Filed: 1977-05-12
Abstract: 1526388 Cyclic heating and cooling systems AMERICAN HYDROTHERM CORP 12 May 1977 [26 May 1976 14 June 1976] 19967/77 Heading F4U Apparatus for the cyclic heating and cooling of processing equipment 10, e.g. a platen press for decorative laminate, with a pressurized heat transfer fluid, e.g. water, comprises heat exchangers 13, 14 for the separate heating and cooling of the fluid and a heat recovery vessel 12 having at least two heat transfer zones 21, 22. In operation, pressurized water is stored in these zones during initial stages of one cycle for use during initial stages of a subsequent cycle, whereby water at an intermediate temture in one zone is passed through the processing equipment prior to the passage through the equipment of heated or cooled pressurized water from the respective heat exchanger.
Patent GB-201940-A (GB)
Title: Improvements relating to the manufacture of silicates of the basic dyestuffs
IPC: C09B69/06
Filed: 1923-08-04
Abstract: The formation of colour lakes from basic dyestuffs and colloidal aluminium silicates is effected by mixing the silicate and dyestuff with a quantity of water insufficient to dissolve the dyestuff, and heating.  Substances to promote subdivision of the silicates, such as alkalies or protective colloids, may also be added; the reaction may be carried out at higher temperatures and under pressure.  The products may contain up to 80 per cent of colouring matter.  An example is given of the production of an auramine lake.  The Specification as open to inspection under Sect. 91 (3) (a) is not limited to the use of water as a solvent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-258712-A (GB)
Title: Improvements in or relating to high frequency electric signalling and remote controlsystems
IPC: H02J13/00
Filed: 1925-08-10
Abstract: 258,712. Kirkland, J. W., (Allgemeine Elektricitats Ges.). Aug. 10, 1925. Wired wireless systems; multiplex signalling; thermionic generators and modulators; calling.- In a high-frequency signalling or remote control system utilizing an existing network, each receiving station is allotted a separate line and carrierfrequency, whilst the individual receiving devices at each station are tuned to separate modulation' frequencies. Carrier waves are generated by a valve oscillator 1 in accordance with the setting of various tuning-condensers 3, by a remote-control relay 4. On each carrier-frequency different signal notes are superposed by a modulating-valve 5, the particular modulating-frequency being determined by the selection of one or other of a series of shunt condensers 7 bv a remote-control relay 8. An associated relay may also close the circuit of the high-tension supply to the generator. Or a single valve may be utilized to produce both carrier and modulation frequencies simultaneously in known manner. The carrier frequencies are fed to a series of conductor lines 11 through tuned feeders 10. At the distant end, the receipt of unmodulated carrier energy of the frequency assigned to the particular receiver 15, Fig. 2, the filament of which is permanently lit, operates a relay 16 to switch in the amplifier 18. The modulated currents are imposed on the grid of the valve 18 through a transformer 17, and are separated out in circuits 19 tuned to the different modulation frequencies employed. These circuits contain thermic, soft-iron, or Ferraris receiving relays; or they may be coupled to further rectifying tubes operating direct-current relays. A separate transmitter may be associated with each receiver for two-way signalling; or a single transmitter may be used to signal a completed opera.- tion from any of the receivers at a given station.
Patent GB-720262-A (GB)
Title: Improvements in and relating to electrical instruments
IPC: G01J5/60
Filed: 1949-08-02
Abstract: 720,262. Photo-electric colour temperature meters. MEGATRON, Ltd., VESZI, G. A., and MARKUS, P. Aug. 2, 1950 [Aug. 2, 1949], No. 20096/49. Class 40 (3). A colour temperature meter comprises a pair of photo-cells mounted edge-to-edge in a housing and responding to different spectral ranges means for indicating a predetermined relation of the responses, a shutter to vary cell illumination differentially and an index for indicating shutter movement. As shown, the meter comprises a circular housing 10 in the rear of which is mounted a microammeter 11 the pointer of which is visible from the rear of the instrument, and having an insulating block 13 in a recess in the face of which are mounted two semicircular photo-cells 15, 16. A blue filter is provided in front of cell 15 and a red filter in front of the other. A semicircular shutter 23 may be moved by a ring 21 to vary the illumination of the cells differentially until the microammeter which is connected across the junction of the opposed cells indicates zero. An index mark in the ring 21 then indicates colour temperature against a scale ring 28. This scale may be removable to facilitate calibration. An aperture 25 is provided through the meter and this is used in conjunction with a tube 24 passing through the insulating block 13, the photo-cells and the filters to sight the instrument on to the.light source. The shape of shutter 23 may be such as to make the scale on ring 28 read in equal steps of colour temperature. The microammeter is closed by a polymethyl methacrylate or glass plate on which a mark 27 indicates the zero of the microammeter scale.
Patent GB-358502-A (GB)
Title: Improvements in the manufacture and production of valuable substitution products of the dibenzpyrenequinone series
IPC: C09B3/50
Filed: 1930-07-04
Abstract: Dibenzpyrenequinones.-The amino group or groups in polyamino-3 : 4 : 8 : 9-dibenzpyrene-5 : 10-quinones or in mono- or polyamino-4 : 5 : 8 : 9-dibenzpyrene-3 : 10-quinones are replaced by other substituents by the diazo reaction.  The hydroxy derivatives thus obtained may be etherified.  In examples, (1) diamino-3 : 4 : 8 : 9-dibenzpyrene-5 : 10-quinone (example 1 of Specification 307,926, [Class 2 (iii), Dyes &c.],) is converted into the dihydroxy derivative, which is methylated by treating with toluene sulphonic methylester in nitrobenzene; the product dyes cotton in brownish-red tints, and (2) monoamino-4 : 5 : 8 : 9-dibenzpyrene-3 : 10-quinone (example 1 of Specification 333,882, [Class 2 (iii), Dyes &c.],) is converted into the corresponding chloro-, bromo-, and cyanoderivative, which dye cotton in blueish-red or reddish-orange tints.  The Specification as open to inspection under Sect. 91 (3) (a) includes also the replacement of the hydrogen atoms of the amino groups in the above compounds by other substituents, for example by condensation with negatively-substituted organic compounds. The preparation of dibenzoylamino - 3 : 4 : 8 : 9 - dibenzpyrene - 5 : 10 - quinone, monobenzoylamino-4 : 5 : 8 : 9-dibenzpyrene-3 : 10-quinone and of a condensation product from diamino - 3 : 4 : 8 : 9-dibenzpyrene - 5 : 10-quinone and anthraquinone-2-carboxylic chloride is described in examples.  In a further example, diamino - 3 : 4 : 8 : 9 - dibenzpyrene-5 : 10 - quinone is treated with benzotrichloride and sulphur in a -chlornaphthalene, to produce a dithiazole derivatives, dyeing cotton in red tints. This subject-matter does not appear in the Specification as accepted.
Patent GB-906525-A (GB)
Title: A process for the production and working up of poly-ª--olefines
IPC: B01J19/18
Filed: 1960-06-09
Abstract: <PICT:0906525/IV(a)/1> Poly-alpha-olefins are produced by polymerizing continuously in the presence of a stereo-specific catalyst using a diluent which is a solvent for the monomer but not for the polymer, the polymer produced being drawn off, separated from the main quantity of the diluent by pressing and extracting under a protective gas with a solution which boils azeotropically at 70 DEG -150 DEG  C. and which consists of the diluent and an alcohol, the azeotrope being distilled off from the extract solution and from the extracted catalyst constituent, polymer fractions and excess diluent and returned to the reaction and the polymer is separated from the azeotropic solution by pressing and dried.  Specified dispersing agents are p-octane, isooctane, n-decane, toluylene, xylene, p-diisopropyl benzene and p-cymene while specified alcohols are ethanol, n-propanol, isopropanol, n-butnaol, isobutanol and amyl alcohol.  Referring to the Figure, the polymerization takes place in tube 1 leading to heated worm conveyer 6 from which diluent is cooled and returned through pipe 7, cleaning cell 8 and tube 4. The extractor 10 which is under dry nitrogen atmosphere is fitted up to line 11 with the azeotropically boiling solution, the polymer fed thereto and purified polymer removed through union 16, the extract goes to flask 13 from which the azeotropic solution is distilled off and returned to the extractor.
Patent GB-1072593-A (GB)
Title: Apparatus for testing the reversion pressure of gaseous fuel
Inventor: SIXSMITH BERNARD
IPC: G01N31/12
Filed: 1965-05-14
Abstract: 1,072,593. Measuring gas reversion property. GAS COUNCIL. May 16, 1966 [May 14, 1965], No.20365/65. Heading G1S. The invention relates to apparatus cyclicly measuring and recording the flame reversion pressure of a gas and can be used to modify the apparatus disclosed in Specification 943, 300 to provide a continuous pressure signal instead of a series of peaks. As described, reversion of the flame to the burner is detected by a flame ionisation probe, connected at (19, 20) to an amplifier to energize a relay (15), Fig. 1 (not shown). The relay (15) energizes a solenoid valve (29) and an R.C. timedelay circuit for a second relay (31) to disconnect the solenoid-valve Fig. 2 (not shown), whereby the flame reversion pressure is applied to a sensing device and retained until the next cycle. In an alternative arrangement Fig. 3 (not shown) the flame electrodes (42, 43) are connected in the grid circuit of a valve (45) to apply a cut-off potential when the flame reverts, whereby valve (50) conducts to discharge capacitor (57) through the solenoid (52) causing momentary opening of the pressure valve.
Patent GB-448368-A (GB)
Title: Improvements in rotary valve internal combustion engines and pumps
IPC: F01L7/02
Filed: 1935-07-17
Abstract: 448,368. Engine cylinders. CROSS, R. C., 33, Midford Road, Odd Down, Bath. July 17, 1935, No. 20382. [Class 122 (i)] [See also Groups XXVII and XXVIII] In internal-combustion en gines or pumps having rotary distributing-valves 1 arrangec in split housings extending across the cylinder heads, resilient packing 9 is inter posed between the two parts 3 and 4 of the housing, anc other resilient packing 10 between the cylinder and crank-case. The compressior of the packing is adjusted by means of tie bolts 11 securing the parts together. Distance-pieces may be arranged between the upper housing part 3 and the crank-case. The packing 9 is preferably made to present a greater resistance to compression than the packing 10.
Patent GB-754050-A (GB)
Title: Improvements in passenger transport vehicles
IPC: B60N3/02
Filed: 1954-07-13
Abstract: 754,050. Vehicle roof supports. DEANS, C. F. July 8, 1955 [July 13, 1954], No. 20412/54. Addition to 727,908. Class 108 (1). The flexible joint between the tube 3 attached to the seat frame 4 and the short stanchion 2 secured to the vehicle roof comprises a resilient member 1 having reduced end portions 1b and annular recesses 1c.
Patent GB-1343612-A (GB)
Title: Process for the hydrocracking of hydrocarbon oils
IPC: C10G47/08
Filed: 1971-04-19
Abstract: 1343612 Hydrocracking SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 19 April 1971 [29 Jan 1970] 20473/71 Addition to 1092400 Heading C5E The process of the parent Specification is carried out in two stages, the feed to the second stage having a nitrogen content between 25 and 150 p.p.m. (wt.). The nitrogen content may be adjusted by varying the temperature of the first hydrocracking stage, or by varying the proportion of material recycled from the second cracking stage. Preferably the effluents from both hydrocracking stages are mixed and fractionated, fractions boiling below 350‹ C. being taken off as product and the residue providing the feed to the second hydrocracking stage. The catalyst in both stages is of the kind specified in the parent Specification, preferably the same catalyst is used in both. The fluorine content of the catalyst may be maintained by adding fluorine to the feed as in Specification 1,104,409.
Patent GB-1471392-A (GB)
Title: Data processing apparatus
IPC: G06F13/18
Filed: 1975-05-15
Abstract: 1471392 Digital computer input/output INTERNATIONAL BUSINESS MACHINES CORP 15 May 1975 [15 July 1974] 20487/75 Heading G4A In data processing apparatus comprising storage, a CPU and a plurality of I/O devices arranged for data transfer relative to the storage in storage cycles, at least one of the I/O devices when operating in burst (dedicated) mode can permit another I/O device to have the next storage cycle. A magnetic disc I/O device operating in burst mode relinquishes one (or more) storage cycles periodically (e.g. every 4th cycle relinquished) and when unable to use them (as when becoming synchronized), by sending an "allow cycle steal" signal to a port unit interfacing with the CPU (which is connected to the storage). The relinquished cycle(s) may be taken up or not by another I/O device (not operating in burst mode), burst mode resuming subsequently. The burst mode I/O device (or rather an attachment unit connected to it) has a bit ring (specifying device timing) which in conjunction with a CPU timing signal (received via the port unit) controls the periodic relinquishment of storage cycles, different stages of the bit ring being used in the cases of read and write respectively. A serial-parallel/parallel-serial converter, buffer register and byte counter are also provided in the attachment unit. The port unit contains a one-byte buffer for each direction of transfer. Normal CPU clocks are inhibited for data transfer (after completion of the current instruction), separate storage clocks being used in the CPU for data transfer.
Patent GB-1279796-A (GB)
Title: Improvements in and relating to change-speed gears for driving flying shears
Inventor: MUNCHBACH C
IPC: B23D25/02
Filed: 1971-04-19
Abstract: 1279796 Flying shears I UNGERER 19 April 1971 [29 Jan 1970] 20492/71 Heading B3W [Also in Division F2] A steplessly-variable-ratio drive for flying shears, cutting continuously fed material, with the ability of rapid ratio-change (under 5 seconds) without the necessity of stopping the material feed, comprises, in parallel, two steplessly variable positive gears 19, 20, controlled by individual motors 30, 31, and having a common input 1, 32-37, and outputs separately connected to a common output 24 through electromagnetic, hydraulic or pneumatic friction clutches 21, 29, so that one may be idle and preselectively adjusted, whilst the other is on load, change-over being effected, when a change in the length cut is required, by changing over the clutches 21, 29. The stepless positive gears may be of the "PIV" (Registered Trade Mark) type, with an adjustment time of 60 seconds, which would, of itself, be too long to avoid the necessity of storing material uncut during the shift interval. The stepless gears 19, 20 provide control speed for the planet-carrier 39 of a torquecombining bevel planet train, of which one sidewheel 28<SP>1</SP> drives the shears, whilst the other, 12<SP>1</SP>, is driven by the motor 1 through a stepped gear 3, 17 controlled by friction clutches 8 ... 11 similar to 21, 29.
Patent GB-130537-A (GB)
Title: Improvements in or relating to Make and Break Devices for Induction Coils and the like.
Inventor: CODD MORTIMER ARTHUR
IPC: H02M1/30
Filed: 1918-12-10
Abstract: 130,537. Codd, M.A. Dec. 10, 1918. Rotary interrupters; timing-devices; mercuryjct apparatus.-A mercury jet make-and-break switch for induction coils and the like is motordriven from below, and the driving-shaft e works in an upright tube f, extending from the bottom of the mercury bowl a to above the level of the liquid. The jet is removably secured to the shaft e by a nut e<2> and carries a dependent tube d<4>, with its lower end below the mercury level, to act as a gas seal over the shaft opening. The jet has a base d<2> located in the mercury so as to constitute a floating support for the jet and its shaft. The fixed contacts are arcuate members k, l secured to the side of the bowl, which is closed at the top by a glass cover c and suitable packing. One of the contacts l is mounted on a pivot l<1>, which may be turned by a milled head l to tilt the contact and adjust the rates and length of make to break. The ends of the mercury passages d<3> to the jet nozzles d are shrouded by shovelshaped plates m on all sides except that approximately in the direction of solution. The shaft may have a detachable connexion e<1> with the driving-motor b. Gas under pressure is supplied to the mercury bowl. The jet, with or without the shaft e, may be readily removed after taking off the cover c.
Patent GB-836109-A (GB)
Title: Improvements relating to thermionic cathodes
IPC: H01J9/04
Filed: 1956-06-25
Abstract: 836,109. Cathode materials and processing. GENERAL ELECTRIC CO. 25 June, 1956 [June 28, 1955], No. 20633/59. Divided out of 831,133. Drawing to Specification. Class 39(1). A thermionic cathode consists of a metal base, a porous layer of metal particles alloyed together and to the base by tantalum, and an emissive coating impregnating and overlying the porous layer. Apart from the tantalum, the other materials and the manner of manufacture are as in Specification 831,133.
Patent GB-441338-A (GB)
Title: Improvements in, or relating to, electrical switches of the tumbler type
IPC: H01H23/16
Filed: 1934-07-14
Abstract: 441,338. Snap-action switches. SIMPLEX ELECTRIC CO., Ltd., DAVIS, P. W., and OSBORN, F. W., 159, Great Charles Street, Birmingham. July 14, 1934, No. 20667. [Class 38 (v)] A snap-action tumbler switch in which provision is made for the positive starting and for the complete positive actuation of the movable contact-member or rocker-arm by the switch-tumbler or dolly is arranged so that the path of oscillation of the positive drive connection between the tumbler and the rockerarm is in an arc substantially removed from its centre at the tumbler pivot, and the rocker-arm pivot is close to the said path of oscillation and lies between that path and the tumbler pivot. As shown in Fig. 1, the body a' of the tumbler lever a pivoted at a<1> is provided with lateral projections a<5> adapted to engage bent-over ears b<5>, Fig. 4, of the contact rocker b pivoted at b<1>. The spring connection connecting the operating and contact levers comprises a compression spring d<4> bearing between the ends d<a>, d<3> of an extensible link, these ends being pivoted to downward extensions a<2> of the tumbler and to the rocker arm respectively. On movement of the tumbler, the positive drive connections engage when the spring has completed, or practically completed its initial stressing movement, the drive thus ensuring the movement of the contact as the spring passes the dead-centre position. The close disposition of the positive driving pieces a<5> and ears b<5> to the rocker pivots which lie between them and relatively distant tumbler pivots ensures an amplified movement of the rocker-arm in relation to that of the tumbler.
Patent GB-397656-A (GB)
Title: Improvements in the manufacture of thermionic cathodes for electric discharge devices
IPC: H01J9/04
Filed: 1932-07-22
Abstract: 397,656. Thermionic cathodes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and RANDALL, J. T., c/o General Electric Co., Wembley, Middlesex. July 22, 1932, No. 20729. [Class 39 (i).] Thermionic cathodes, particularly for discharge lamps, of the type consisting of a selfsupporting mass heated by means, for example a tungsten spiral, which do not contribute to the rigidity of the mass, are prepared by forming a mass of the desired shape out of alkaline earth peroxide and decomposing the peroxide by heat. Metal, particularly tungsten, powder, may be mixed with the peroxide. The peroxide may be bound with a 10 per cent solution of nitro-cellulose in amyl acetate, in the proportion 20 grams of barium peroxide to 4 to 5 grams of the binder. Gum tragacanth is not suitable. In one example the mixture is squirted into rods 4À5 mm. in diameter, and heated in a vacuum furnace. The temperature is raised to 125‹ C. during a period of 30 minutes, then from 125‹ C. to 250‹ C. during a further period of 30 minutes ; this decomposes the binder. The temperature is then raised to 1150‹ C. during a period of 90 minutes, whereby the peroxide is decomposed. To sinter the rods they are placed in a molybdenum boat lined with tungsten in a hydrogen-filled furnace and the temperature is raised to 1620‹ C. during a period of 30 minutes and held there for 10 minutes. A magnesia lining may be used instead of tungsten.
Patent GB-699898-A (GB)
Title: Photosensitively opacifiable glass
IPC: G03C1/494
Filed: 1952-08-18
Abstract: 699,898. Glass. CORNING GLASS WORKS. Aug. 18, 1952 [Aug. 30, 1951], No. 20755/52. Class 56. A photosensitively opacifiable glass in which exposure to short wave radiation followed by heating produces in the irradiated area an opacified image formed by the precipitation of crystallites of lithium disilicate contains as essential constituents in percentages by weight 70 to 85 SiO 2 , a total alkali metal oxide content of 9 to 23, said alkali metal oxide content consisting of 9 to 15 Li 2 O, 0 to 8 Na 2 O, 0 to 8 K,O and 0 to 8 of a mixture of Na 2 O and K 2 O and 0.001 to 0.020 of silver computed as AgCl, the essential constituents totalling at least 84 per cent of the glass which is melted under reducing conditions by adding about 0.35 per cent of starch to the batch. A preferred composition range is 78 to 83 SiO 2 , 10 to 13 LiO 2 , 2 to 5 K 2 O; up to 10 Al 2 O 3 , 0.001 to 0.020 silver computed as AgCl and 0.005 to 0.05 CeO 2 . The glass is stated to have a greater photosensitivity and differential in solubility rate in dilute hydrofluoric acid between the clear and opacified portions than previous photosensitive glasses such as that described in Specification 636,152, these properties making it especially suitable for use in the manufacture of articles having surface designs in intaglio or in relief formed by the chemical sculpturing process described in Specification 699,897.