baber/WOPTO huggingface dataset:
Patent GB-525417-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H05G1/56
Filed: 1939-02-20
Abstract: 525,417. Electromagnetic relays; switching systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 20, 1939, No. 5637. Convention date; Feb. 22, 1938. [Class 38 (v)] [Also in Group XXXV] On closing a switch 31, a condenser 32 that has previously been charged by a battery 35, discharges through the coil 29 of a relay and operates the latter; the relay is then main-, tained in its operated position by the current from the battery 35 which would have been insufficient by itself to operate the relay. The relay 29 may be restored to its original position by sending a current through the coil 29 in opposition to the current from the battery 35 thereby allowing a spring or gravity to move the coil back or the current may be so strong as to overpower the battery current and cause the permanent magnet 28 of the relay to repel the coil. The invention is shown applied to the operation of X-ray apparatus. The operation of the relay 29 by closure of the switch 31 serves to open contacts 19 whereby the grid 14 of a valve 11 becomes positive and allows current to pass through the valve from a battery 15. The consequent drop of voltage between anode 12 and cathode 13 reduces the strong negative voltage of a grid 10 and allows current to pass through a valve 7 from previously charged condensers 2, 3 to the X-ray tube 1. This current gradually charges a condenser 24 till the voltage of this is sufficient to cause a current to pass through a valve 38 to the coil 29 causing the return of the relay as previously described, and the consequent stoppage of the current to the X-ray tube 1. To cause a further operation of the relay and of the X-ray tube the switch 31 must be opened to allow the condenser 32 to re-charge and then be closed again. The arrangement of the valves 7, 11 is similar to that described in Specification 516,047, [Group XXXV], and serves to maintain a constant voltage across the X-ray tube 1 notwithstanding the decrease in voltage due to the discharge of the condensers 2, 3.
Patent GB-230104-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/42
Filed: 1924-03-12
Abstract: 230,104. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Bellamy, J. I., and Gardner, J. E.). Aug. 25, 1923, [Convention date]. Drawings to Specification. Automatic exchange systems.-A register-controller of the code-translating type, when released from service, is rendered continuously non-selectable until all its component switches have restored to normal. Whilst the register-controller is functioning, the usual guarding potential is applied at the switch over which it is taken into use, and an additional ineffective guarding potential is connected to the test wire over off-normal contacts of the exchange register. When the normal guarding potential is removed, the release of the register-controller is initiated, and the additional guarding potential becomes effective to maintain it non-selectable until the release commences, when a still further guarding potential is supplied by a relay having a plurality of parallel holding circuits extending over the release magnets and off-normal contacts of all the register switches. According to another feature, guarding potential to hold up the numerical talking connection switches in the originating exchange is fed forward throughout the connection by a relay in the outgoing trunk from which access is had to the register-controller, so as to enable repeaters to be dispensed with in junction lines. The system described is identical with that described in Specification 220,923, which claims other features.
Patent GB-794383-A (GB)
Title: Process for the production of azulenes
IPC: C07C1/32
Filed: 1956-02-23
Abstract: Azulenes and benzazulenes are prepared by reacting a metal compound of a cyclopentadiene unsubstituted in at least one o-position to the -CH2- group with a quaternary pyridinium or quinolinium salt and the initially formed addition product readily splits the pyridine ring to form a fulvene which is converted into an azulene by heating to 100-300 DEG  C., as described in the parent Specification. Substituted cyclopentadienes including indenes can be used.  Any quaternary pyridinium or quinolinium compound can be used but since the quaternizing agent is lost in the process, cheap components such as benzyl, methyl and ethyl chlorides and bromides are preferred, similarly sodium, potassium and calcium compounds of cyclopentadiene are preferred. Free cyclopentadienes can be used if the process is carried out in the presence of an alkali metal alcoholate, the metal derivative thereby being formed in situ.  Liquid ammonia is a particularly suitable solvent.  Examples describe reactions between (1) N-methyl pyridinium bromide and sodium methyl cyclopentadiene to give a -methyl-N-methyl-4-amino-butadiene-(1,3)-yl fulvene, separated but not identified, which on heating gives 1-methyl azulene; (2) sodium cyclopentadiene with N-methyl pyridinium bromide to give azulene; (3) sodium cyclopentadiene with a -methyl-N-methyl pyridinium bromide to give 4-methyl azulene; (4) sodium cyclopentadiene with b -methyl-N-methyl pyridinium iodide to give 5-methyl azulene; (5) sodium cyclopentadiene with a -methyl-N-ethyl pyridinium bromide to give 6-methyl azulene; (6) sodium cyclopentadiene with 2,4 - dimethyl - N - methyl pyridinium bromide to give 4,6-dimethyl azulene; (7) sodium cyclopentadiene with 2,6-dimethyl-N-methyl pyridinium bromide to give 4,8-dimethyl azulene; (8) sodium cyclopentadiene with N-methyl quinolinium bromide to give 4,5-benzazulene.
Patent GB-329637-A (GB)
Title: Improvements in synchronising means for electrical picture receivers and the like
IPC: H04N1/36
Filed: 1929-02-20
Abstract: 329,637. Collinson, R. F. Feb. 20, 1929. Electromaqnets.-The magnet of the relay for actuating the trigger of the starting-mechanism of a copying telegraph receiver comprises fixed and pivoted coil-bearing limbs 16, 17 normally held apart by a spring 18.
Patent GB-575589-A (GB)
Title: Improvements in and relating to the manufacture of aluminium alloy structures
IPC: B23K35/28
Filed: 1944-03-28
Abstract: 575,589. Alloys ; fluxes ; annealing. BRITISH NON-FERROUS METALS RESEARCH ASSOCIATION, LIDDIARD, E. A. G., and PENDLETON, J. March 28, 1944, No. 5716. [Classes 72, 82 (i) and 82 (ii)] [Also in Group XXII] In making aluminium alloy structures of high tensile strength, from a number of component parts, the parts consist of an aluminium alloy containing 3 to 13 per cent of silicon and 1 to 5 per cent of copper which are united together by welding. The heat of welding which may be effected by fusion by electric arc or gas flame or by spot or resistance welding is stated to leave the strength and other properties of the structure comparable with those of the unwelded material. In fusion welding, the filler rod may be a similar composition or may contain a grain refining element such as titanium. In other cases, the rod may contain up to 13 per cent of silicon and/or 1 per cent of magnesium, and in further cases may contain high silicon, the alloy containing 2 to 3 per cent of copper, 10 to 13 per cent of silicon, 0.1 to 0.3 per cent of titanium with the optional addition of up to 1 per cent of magnesium. In the last-mentioned case, a flux containing zinc or cadmium halide may be used. The alloys to be used for the welded structure, which are substantially free from magnesium, may, prior to welding, be solution heat treated by holding in the temperature range 475‹ to 550‹ C. for some time sufficient for the copper bearing constituents to go into solution and then cooling at a rate sufficiently rapid to prevent subsequent precipitation. The alloys may first be hot worked or heat treated to obtain the copper in solid solution without agglomerating the copper rich precipitate and may then be heat treated to render them ductile by heating to 360‹ C. and cooling slowly in a furnace and finally, before welding, heat treated in the temperature range 475‹ to 550‹ C. and cooled sufficiently rapidly to prevent subsequent precipitation. In one process, an allummium alloy containing 2 to 3 per cent of copper and 4 to 5 per cent of silicon and free from' magnesium, and previously heat treated by heating to a temperature of 475‹ to 550‹ C. and quenched in water, may be fusion welded with a filler rod or electrode containing 2-3 per cent of copper and 10 to 13 per cent of silicon, or silicon up to 13 per cent and /or up to 1 per cent magnesium. The flux may consist of 30 per cent each of sodium and potassium chlorides, 10 per cent of potassium fluoride, 20 per cent lithium chloride and 10 per cent of zinc chloride.
Patent GB-563468-A (GB)
Title: Improvements in or relating to oscillatory circuits
IPC: H03H5/00
Filed: 1942-04-28
Abstract: 563,468. Coilless resonators ; wireless receiving apparatus. LANDMANN, A. April 28, 1942, No. 5719. [Classes 40 (iii) and 40 (v)] A tunable resonator comprises a plate, preferably in the form of a ring 3, with a gap 4 in which a condenser with angularly movable vanes 6 is mounted in order that the circuit formed by the inductance of the plate 3 and the capacity of the condenser may be tuned as desired. The plate 3 is slotted at one or both sides of the gap so as to present a comb-like appearance, and the condenser vanes lie in the slots and are adjustable by rotating the shaft 7. The plate may be of solid metal, or of an insulating material with a metal coating. The material of the plate and the condenser vanes may be chosen so that the resonant frequency remains constant with variations of temperature. The resonator may be employed as the tuned circuit of the local oscillator of a superheterodyne receiver, and may tune from 230 to 310 Mc. /s., the grid and anode of the oscillator valve being connected to opposite sides of the gap 4, or to other suitably chosen points on the ring.
Patent GB-586549-A (GB)
Title: Improvements in or relating to the chemical modification of organic textile and other materials
IPC: D06M13/395
Filed: 1941-05-02
Abstract: Textile and other materials having a basis of substances consisting of long chain molecules containing hydroxy, thio, amino or other groups reactive with the isocyano or isothiocyano radical are caused to react with organic di- or poly-isocyanates or isothiocyanates. The treatment of materials of resinous condensation products of formaldehyde with an amide or phenol or of synthetic linear polyamides is excluded.  The treatment of cellulose derivative materials, soluble in organic solvents, with di- or poly-isocyanates is also excluded.  Textile filaments or yarns or films, foils, or other moulded articles may be treated. They may be of cotton, regenerated cellulose, acetone-soluble cellulose acetate or other incompletely esterified or etherified cellulose derivative, polyvinyl alcohol or a partially esterified or acetalised derivative thereof, polymethacrylic acid, alginic acid, casein, natural silk or wool. Wool in which the disulphide cross-linkages have been broken down to thiol groups may be subjected to the treatment.  Tetra-, hexa-and octa-methylene di-isocyanates and di-isothiocyanates, and pentane - 1,3,5 - tri - iso - cyanate may be used.  Meta- and paraphenylene - di - isocyanates and di - isothio - cyanates, the 4,41-di-isocyanate of diphenyl, adipyl di-isocyanate, 4,41-di-isocyanate of didiphenyl methane, and 4,41,411 - tri - isocyanotriphenyl-methane are also specified.  The treatment is believed to result in the formation of cross-linkages between long molecular chains through radicals containing a plurality of -Y.CX.NH- groups, Y being = N-, -NH-, -S-, -O-, or a direct linkage, and X being -S- or -O-.  The treatment reduces or removes the solubility of cellulose acetate yarns and other materials in organic solvents and increases the melting point and heat resistance.  The affinity for dyes is modified.  The treatment increases the hydrophobic character of the materials and raises the ratio of the wet to the dry strength.  The treatment may be effected by impregnating the materials, e.g. yarns in hank or fabric form, with the reagent and then heating to effect the desired reaction.  The reagent may be applied in solution in a non-solvent liquid.  The heating may be effected at 110-130 DEG  C.  Materials of regenerated cellulose and alginic acid may be rendered more receptive to the reagent by first wetting them with water, replacing the water by benzene or other inert organic solvent, removing the solvent and then applying the reagent.  Alternatively, when treating these materials, pyridine may be used as a solvent for the reagent.  In examples, hanked cotton yarn, regenerated cellulose yarn from stretched and saponified cellulose acetate yarn, wool yarn, viscose yarn and cellulose acetate yarn are rendered water-repellent by treatment with octamethylene-and hexamethylene-di-isocyanate or di-isothiocyanate.
Patent GB-1087924-A (GB)
Title: Improvements in direct fired pyrolysis heaters
Inventor: WIESENTHAL PETER VON
IPC: B01J6/00
Filed: 1966-02-10
Abstract: 1,087,924. Liquid heaters. ALCORN COMBUSTION CO. Feb. 10, 1966, No. 6805/66. Headings F4A and F4B. A pyrolysis heater comprises a chamber divided into zones 16, 17, 18 and 19 by baffles 22,23 and 24 with burners 47 being disposed between adjacent baffles, each of said burners producing convection in its zone which, by virtue of the baffles, is independent of the same in adjacent zones. Portions 32, 33, 34 and 36 of the bank of vertical tubes 37 are then heated from two sides by both convection and by radiation from refractory material 41 disposed above the burners and along the walls of the chamber. Liquid conducted within the bank 37 is firstly preheated by passing through tubes (31) disposed within the heater flue (14). The construction of the burners (Fig. III) is such that it provides a low burner flame within troughs 49 with the steep lip 59 shielding the bank of tubes 37 from said flame.
Patent GB-263655-A (GB)
Title: Improvements in or relating to the driving of carding and like machines
IPC: D01G15/36
Filed: 1926-03-02
Abstract: 263,655. Siemens - Schuckertwerke Ges. Feb. 13, 1926, [Convention date]. Carding-engines.-The electric motor 5 driving the shaft 1 of the cylinder, which has adjustable bearings, is mounted on a bracket 17 on the bearing 7 of the shaft, in order that adjustment of the bearing will not interfere with the meshing of the driving-gears 3, 4.
Patent GB-855058-A (GB)
Title: Improvements in or relating to bladed rotor or stator constructions for axial-flow fluid machines for example for compressors or turbines of gas-turbine engines
Inventor: ROBERTS DEREK AUBREY
IPC: F01D5/18
Filed: 1957-02-22
Abstract: 855,058. Turbine and compressor blades. ROLLS-ROYCE Ltd. Feb. 11, 1958 [Feb. 22, 1957], No. 6130/57. Class 110 (3). Blades 14 of an axial-flow turbine or compressor have internal bores 25 extending lengthwise of the blade and interconnected at their ends to afford a sinuous flowpath having an odd number of courses, through which heating or cooling fluid flows, there being an inlet 30 and an outlet 33 at either end of the path and blade. A bleed hole 37 at the end of the first course and an inlet hole 38 in one or more of the courses other than the first, each having a smaller cross-sectional area than that of the bore, may also be provided. A course may be afforded by a single bore or a plurality of bores in parallel; a blade may be provided with a number of sinuous flow paths.
Patent GB-1018123-A (GB)
Title: Improvements in electron guns with electrostatic focusing
IPC: H01J29/82
Filed: 1963-02-15
Abstract: 1,018,123. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 15, 1963 [Feb. 20, 1962], No. 6248/63. Heading HID. At least two cylindrical electrostatic focusing electrodes 8, 9, 10 of an electron gun are located relative to each other by three or more rodshaped insulating members 14 positioned between overlapping parts of the electrodes. The electrodes are reduced in thickness in the region of overlap 13 and the members may or may not be cemented in position. The end faces of the members are provided with grooves 15, e.g. simple slots or grooves in the form of a cross, to improve insulation. The electrodes 9, 10 are held against the tube neck by springs 16, 17. Further insulating members 14 may be provided between the control electrode 7 and the electrode 8. In the shown arrangement six members 14 are provided, equally spaced, at each end of the electrode 9. The supply conductors for the electrodes 9 and 10 are taken inside glass tubes along the electron gun.
Patent GB-535530-A (GB)
Title: Improvements relating to internal combustion engine installations for ships and other purposes
IPC: F02B61/04
Filed: 1940-04-06
Abstract: 535,530. Engine installations. GILJAM, J. B. April 6, 1940, No. 6257. [Class 7 (ii)] To ensure a constant output from each of the engine cylinders under all running conditions an installation comprises a number of units of different output which are coupled to, or disconnected from, a propeller or other power transmission shaft in accordance with the speed or load requirements of the vessel or machine to be driven. In the arrangement shown in the figure, three units having five, eight and twelve cylinders respectively are coupled together by clutches 1 and 2 the unit A being connected directly to a propeller shaft 4. At low speeds the unit A is in use alone ; at cruising speed the unit A is coupled to the unit B and at maximum speeds the unit C is included. The fuel pumps are driven by shafts 6, 7 and 8 which are disconnected at 9, and 10 when the corresponding units are out of commission.
Patent GB-246686-A (GB)
Title: Wireless telegraphy and telephony apparatus
IPC: H01Q1/50
Filed: 1925-03-07
Abstract: 246,686. Millet, J. March 7, 1925. Grounding aerials. -An aerial earthing switch is combined with a safety fuse device in the normal instrument circuit and with a second safety device, preferably in the form of a, sparkgap, located in a second circuit between the leadin and earth terminals, the arrangement being such that the second circuit is closed through the spark-gap on the opening of the normal instrument circuit by the breaking down of the safety fuse device therein. Mounted on one side of an upstanding rib 2 on a porcelain &c. panel 1 is a pivoted knife switch 3 adapted to cooperate with pairs of clips 4, 5, the clips 4 leading to the instrument and the clips 5 leading to the earth-wire terminal. On the other side of the rib 2 is the lead-in terminal 19 and pairs of spring clips 6, 7 which are metallically connected by a readily detachable safety fuse device 8 comprising a wire 9 mounted in end sockets 10 and covered by a glass &c. shield 11. The clips 7 are connected at 12, Fig. 3, to the pivot of the switch bar 3. The spark-gap device 14, comprising the conducting blocks 16, 15 and the carbon sticks 17, 18, is also mounted on this side of the rib 2, the block 16 being connected by the strip 13, Fig. 3, to the lead-in terminal 19, whilst the block 15 is connected by the strip 21 to earth 20.
Patent GB-732832-A (GB)
Title: Improvements in or relating to terminating the polymerization in aqueous emulsion ofmonomeric materials
IPC: C08F2/40
Filed: 1952-03-12
Abstract: Polymerization in aqueous emulsion of a vinylidene compound is terminated by adding to the emulsion prior to completion of the polymerization, a mixture consisting of (1) a solution of sulphur or sulphur-donors, and (2) an aqueous solution of a water-soluble salt of a dithiocarbamic acid, substance (1) being added in amounts equivalent to form 0.01 to 0.1 per cent of sulphur, and (2) in amounts from 0.01 to 0.1 per cent, both based on the weight of monomers initially present in the emulsion.  Specified vinylidene compounds are vinyl chloride, vinylidene chloride, vinyl acetate and benzoate, methyl acrylate and methacrylate, octyl acrylate, acrylonitrile, styrene, isobutylene, ethylene, butadiene, isoprene, 2,3-dimethyl-butadiene, chloroprene, 3-cyanobutadiene, piperylene, and myrcene and mixtures of the above dienes with the other above-mentioned vinylidene compounds (except vinyl chloride and ethylene) or with p-chloro-, or p-methoxystyrene, 3,5-dichlorstyrene, acrylic or methacrylic acid, lauryl methacrylate, alpha-chloroacrylonitrile, methacrylonitrile, dimethyl acrylamide, vinyl pyridine, vinyl ketones and ethers, vinyl carbazole, vinyl furane, diallyl maleate, divinyl benzene, vinyl acetylene, and vinyl ethinyl carbinol.  Specified sulphurdonors are thiuram polysulphides, xanthogen di- and tetra-sulphides, polythioamines, heavy metal salts of dithioacids, sodium, potassium and ammonium polysulphides, and sodium hyposulphite.  Specified dithiocarbamic acid salts are sodium, potassium, lithium and ammonium dithiocarbamates, sodium methyl or dimethyl or diethyl dithiocarbamates, ammonium pentamethylene or potassium dimethyl dithiocarbamates, sodium dibutyl, dicyclohexyl or diphenyl, or tetraethylene pentamine dithiocarbamate.  The usual emulsifiers, polymerization catalysts, polymerization modifiers and buffer salts may also be present.
Patent GB-1394308-A (GB)
Title: Printing apparatus
IPC: B41F17/18
Filed: 1973-02-09
Abstract: 1394308 Conveying ampoules TAKEDA YAKUHIN KOGYO KK 9 Feb 1973 [14 Feb 1972] 6510/73 Heading B8A [Also in Division B6] A rotary drum conveyer for conveying ampoules A past a printing head has peripheral pockets for receiving ampoules which comprise end portions which support the ampoules spaced by a wider portion 25a, to which suction can be applied via ducts 26a to hold the ampoules in position. In one embodiment two sets of pockets are provided axially spaced from each other and ampoules are delivered to one set and held by suction through a printing station up to a point where the ampoule is held by gravity when the suction is cut off by a valve member 46 and the ampoule moved from one set to the other by a blast of air, it is then held by suction until valve member 38 allows it to fall on to another conveyer.
Patent GB-1345675-A (GB)
Title: Preparation of hydroxyacid amides
IPC: C07D315/00
Filed: 1972-02-11
Abstract: 1345675 Preparation of hydroxyacid amides MOBIL OIL CORP 11 Feb 1972 [15 March 1971] 6513/72 Heading C2C Hydroxyacid amides are obtained by heating together a secondary amine and a lactone, which are initially immiscible with one another, with agitation at a temperature from 85‹ to 200‹ C. and in a mole ratio of amine to lactone of at least 1:1, for a period of time until miscibility of the amine and lactone is obtained and amide formation is initiated and no longer than that required for maximum equilibrium conversion to the amide, and cooling the resulting reaction mixture without agitation for a period of time longer than the heating period until completion of the reaction. The cooling step is suitably effected at 20-60‹ C. and the mole ratio of secondary amine to lactone may range from 1:1 to 10:1. The lactone starting material may have the formula where n is an integer from 1 to 5 and R 1 -R 4  are hydrogen or hydrocarbon groups having from 1 to 30 carbon atoms, and the amine starting material may have the general formula R 5 R 6 NH, where R 5  and R 6  are alkyl, cycloalkyl, hydroxyalkyl, alkoxylated hydroxyalkyl, aryl, alkaryl or aralkyl groups having from 1 to 30 carbon atoms. In examples, the diethanolamide of gamma-hydroxytetradecanoic acid and the N- methyl-ethanolamide of alpha-methyl-gammahydroxyhexadecanoic acid are prepared. The products possess non-ionic detergent properties.