baber/WOPTO huggingface dataset:
Patent GB-808063-A (GB)
Title: New cupriferous disazo-dyestuffs derived from diphenyl and process for their manufacture
IPC: C09B35/08
Filed: 1955-05-27
Abstract: The invention comprises dyestuffs of formula <FORM:0808063/IV (c)/1> where Y1 is an alkoxy group of preferably not more than 4 C atoms, which contains a hydroxyl or alkylated hydroxyl group, and Y2 is as Y1 or a hydroxyl or unsubstituted alkoxy group.  The aliphatic hydrocarbon residue of the alkoxy group may be saturated or unsaturated.  They are made by conventional coppering processes from the corresponding o,o1-dimethoxydiphenyls, the latter being made in the usual way from appropriate tetrazotized diphenyls and naphthol sulphonic acids.  Specified for Y1 are b -hydroxyethoxy, b - and g -hydroxypropropoxy, b ,g  - dihydroxypropoxy and b  - methoxyethoxy and Y2 as Y1 and additionally methoxy, ethoxy, n-propoxy, isopropoxy, isobutyloxy and allyloxy.  The dyestuffs dye cellulosic materials in blue tints.  Examples are provided illustrative of the preparation of the dyestuffs from certain of the components specified above and their use in dyeing cotton.
Patent GB-737569-A (GB)
Title: Improvements in or relating to flexible conduit adaptors, connectors and the like
IPC: F16L33/26
Filed: 1952-06-19
Abstract: 737,569. Flexible tube connecters. ABBOFLEX, Ltd., and BIRKS, N.A. May 28, 1953 [June 19, 1952], No. 15470/52. Class 99 (1). A connecter fitting for the end of a helically wound flexible metallic tube, having an external helical groove, comprises a tubular fitting 2 having a screw thread 6 for connection to another fitting and a tapered spigot 8 received in a sleeve 14 to which it is secured, such as by a set-screw 16, the sleeve having at its other end means for engaging the helical groove of the tube, said means being disposed on one turn of a helical path and spaced from the spigot by at least twice the pitch of the helix. The said means may comprise three equally spaced lugs 20 punched out of the sleeve. The spigot, against which the tube is forced, may be longitudinally slotted.
Patent GB-1077910-A (GB)
Title: Flame retardant epoxy resin composition
IPC: C07D303/24
Filed: 1966-04-07
Abstract: Polyepoxide compositions, curable by epoxy resin curing agent to a flame retardant resin, comprise a mixture of (1) 10-80 wt. per cent of a glycidyl polyether of formula <FORM:1077910/C3/1> wherein each R1 is independently a phenylene radical or a methylolphenylene or a dimethylolphenylene radical, each R is independently H or an alkyl group of 1-4 carbon atoms, X is Cl or Br, A is -CX2-or -CH2-, n is 0 or an integer up to 6 and m is a number from 0-10, and (2) 90-20 wt. per cent of a glycidyl polyether of 2,2-bis(4-hydroxyphenyl)propane. The compositions may be cured by any of the usual epoxy resin curing agents and may also contain solvents, reactive diluents, plasticizers, pigments, stabilizers, extenders, thixotropic agents, fillers and diluents.  The compositions are suitable for use in coating compositions, pottings, castings, adhesives and impregnants.ALSO:Diglycidyl ethers are prepared by reacting bis(4 - hydroxyphenyl) - 1,4,5,6,7,7 - hexachlorobicyclo(2,21)hep - 5 - en - 2 - ylmethane, methylol - bis(4 - hydroxyphenyl) - 1,4,5,6,7,7-hexachlorobicyclo(2,2,1)hept - 5 - en - 2 -ylmethane and 2,2 - bis(4 - hydroxyphenyl) - 4-{1,4,5,6,7,7 - hexachlorobicyclo(2,2,1) - hept - 5-en-2-yl}butane with epichlorohydrin in MeOH in the presence of aq. NaOH.  Methylol - bis(4 - hydroxyphenyl) - 1,4,5,6,7,7-hexachlorobicyclo(2,2,1)hept-5-en-2-ylmethane is prepared by reacting the bis(hydroxyphenyl)-hexachlorobicycloheptenylmethane with aqueous formaldehyde in MeOH in the presence of NaOH.  Bis(4 - hydroxyphenyl) - 1,4,5,6,7,7 - hexachlorobicyclo(2,2,1)hept - 5 - en - 2 - ylmethane and 2,2 - bis(4 - hydroxyphenyl) - 4 - {1,4,5,6,7,7-hexachlorobicyclo(2,2,1)hept - 5 - en - 2 - yl}-butane are prepared by reacting 1,4,5,6,7,7-hexachlorobicyclo(2,2,1) - hept - 5 - ene - 2-carboxaldehyde and 4 - {1,4,5,6,7,7 - hexachlorobicyclo(2,2,1)hept - 5 - en - 2 - yl}butan-2-one respectively with phenol in the presence of HCl gas.
Patent GB-616880-A (GB)
Title: Improved variable inductance device
IPC: H03H5/00
Filed: 1946-05-22
Abstract: 616,880. Inductances. BRITISH THOMSONHOUSTON CO., Ltd. May 22, 1946, No. 1552]. Convention date, May 25, 1945. [Class 38 (ii)] [Also in Group XL (c)] A variable inductance device comprises a coil 1, a relatively movable core 2 of magnetic material and a mechanically coupled variable capacitor 5 to neutralize changes in coil capacitance resulting from core movement.
Patent GB-431430-A (GB)
Title: Improvements in and relating to supporting means for electric discharge rectifier vessels
IPC: H01J13/48
Filed: 1934-05-24
Abstract: 431,430. Discharge rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 24, 1934, No. 15532. Convention date, May 24, 1933. [Class 39 (i)] Supporting means for an electric discharge rectifier which is mounted on a carriage d adapted to be drawn forward from a casing, comprise at least three points of support located on adjustable resilient arms e. For high voltages, hard paper forks f are secured to the arms e. The carriage d is mounted upon rails a which can be pushed into the casing by insulating handles g. The handles g extend right up to the door of the casing to ensure that the rails are pushed home before the door is closed.
Patent GB-645236-A (GB)
Title: Improvements relating to electric hand irons
IPC: D06F75/26
Filed: 1948-06-09
Abstract: 645,236. Thermal switches. HOOVER, Ltd. June 9. 1948, No. 15552. Convention date, June 16, 1947. [Class 38(v)] The handle supports 19, 20 of an electric iron are extended at the base to form a shield 21 which substantially overlies the whole of a cooling fin 13 mounted above the iron body 10 and has a recess 23 accommodating the thermostatadjusting ring 25 accessible by openings 45, 46 in the shield 21. The ring is mounted by metal discs 30, 31 engaging at their outer periphery an internal rib 27 on the ring and joined at their centre by a sleeve 33 having a flat surface 35 co-operating with a like surface on the thermostat shaft 15. Vibration of the ring 25 is prevented by spring fingers 40, 41 stamped out of the discs 30, 31 and respectively pressing against the inner surface 42 of the recess 23 and the top surface of the cooling fin 13. Specification 631,054 is referred to.
Patent GB-593659-A (GB)
Title: Improvements relating to the manufacture of heterocyclic amines
IPC: C07D239/14
Filed: 1945-06-19
Abstract: Salts of heterocyclic compounds represented by the ring system <FORM:0593659/IV/1> are obtained by heating dicyandiamide with a mono- or di-acid salt of a diamine of the formula R(NH2)2.HX, wherein HX represents the acid used to form the salt and wherein R consists of 2-, 3- or 4-methylene groups.  In examples: (1) dicyandiamide and ethylenediamine monotoluene-p-sulphonate are heated in admixture at 140 DEG  C. to obtain 2-amino-4 : 5-dihydroglyoxaline toluene-p-sulphonate; (2) dicyandiamide and ethylenediamine di-toluene-p-sulphonate are heated as in (1) at 220 DEG  C. to obtain the product of (1); (3) dicyandiamide, trimethylenediamine and trimethylene diamine di-toluene-p-sulphonate are heated together at 160-165 DEG  C. to obtain 2-amino-3 : 4 : 5 : 6-tetrahydropyrimidine; (4) dicyandiamide, putrescine and putrescine di-toluene-p-sulphonate are heated together as in (3) to obtain 1 - amino - 2 : 7 - diazocycloheptene toluene - p - sulphonate.
Patent GB-170327-A (GB)
Title: Improvements in and relating to the construction of vacuum tubes and the like as used for radio signalling
IPC: H01J19/44
Filed: 1920-06-10
Abstract: 170,327. Taggart, J. Scott-, and Radio Communication Co., Ltd. June 10, 1920. Vacuum tubes. - A re-entrant tubular stem for supporting an electrode in a vacuum tube such as a thermionic valve, is provided with an insulating sleeve or hood extending into or around the stem and fused thereto at one end, the metallic supports for the electrodes being fixed to the outside of the stem and to a pinch, so that the leakage path between the electrodes includes at least the whole of one surface of the sleeve or hood, and a part of the outer surface of the stem. In the arrangement shown in Fig. 4, the insulating sleeve b is fused to the reentrant stem a, the filament supports e being secured in the pinch c and the anode supports h fixed to the stem. In a modification the anode is supported at the other end of the bulb on a stem having a sleeve carrying a spring support for the filament. In the arrangement shown in Fig. 9, the insulating hood f extends around the re-entrant stem a carrying supports m for a grid l, a similar hood f<1> being provided at the other end to insulate the anode supports h from a spring support e<2> for the filament. In other modifications, one or two sleeves or hoods are used in a two- or three-electrode valve.
Patent GB-1470071-A (GB)
Title: Monitoring counters
IPC: G01D1/14
Filed: 1974-04-09
Abstract: 1470071 Counting apparatus AUSTRALIA COMMONWEALTH OF 9 April 1974 [10 April 1973] 15729/74 Heading G4D [Also in Division H3] In monitoring a fluctuating electrical signal, such as from a strain gauge sensing stresses in an aircraft structure, so called range pairs are detected and individually counted. A range pair is an excursion of the signal beyond a first level followed by an excursion in the opposite direction beyond a second level (Fig. 2); within certain limitations one crossing of each level is sufficient to identify. In practice the signal is applied to a plurality of different level detectors, range pairs can then be found for any pair of levels although small fluctuations may be ignored by not counting any with levels close together. In order to identify pairs the outputs of the n level detectors may be applied to both the row and column of an n Î n triangular matrix of bi-stable circuits; the crossing of a level by the signal then sets all the bi-stables in the row and resets all those in the column. The resetting of a bi-stable which was set at a previous crossing is detected and applied to a counter associated with that particular bi-stable. A large number of counters is required to count all possible range pairs from a large number of strain gauges necessary to monitor a complete aircraft. Therefore in a detailed embodiment (Figs. 7-14, not shown), the individual counts are stored in a memory such as a core store, protected against cessation of power supply and a count to be incremented is read into a register, incremented and returned to the memory. A time division multiplex arrangement allows several strain gauge channels to operate simultaneously. The total counts may when required be printed or recorded on a tape cassette for later analysis by a computer to determine the condition of the aircraft.
Patent GB-481241-A (GB)
Title: Improvements in transfer and feeding mechanism for envelopes and the like planiform articles
IPC: B65H5/06
Filed: 1937-06-07
Abstract: 481,241. Feeding sheets. DICKINSON & CO., Ltd., J. June 7, 1937, No. 15749. Convention date, July 6, 1936. [Class 100 (i)] Envelope or similar blanks are fed from a stack S maintained at a constant height determined by an adjustable stop 22 by means which transfer the top sheets in succession in an arcuate path to a higher level, the sheets being then advanced in a path tangential to the arcuate path. The front edges of the blanks are registered against adjustable stops 36, and prior to the action of an oscillating suction device N the front edges of the sheet are held by an oscillating pressing member 25 operated from a cam C<1> by adjustable lever-and-link mechanism 30, 31, 32. The suction device N is carried adjustably by a clamp 44 pivoted to an oscillating lever 41, the clamp also being pivoted to a control link 42 which is mounted on an adjustable stud 51 so as to permit adjustment of the range of throw of the suction device N. The lever 41 is operated from a cam C<11> by means of a bell-crank 5, 7 and a link. After the top blank has been raised by the suction device it is pressed against the central pair R3, R<4> of a series of spaced apart rotary members R of which two only are shown in Fig. 12, by means of rollers 73 mounted at the ends of a pair of bent levers 74, 75 pivoted at 77 and forming toggle levers with additional levers 76 which have adjustable sliding connections with pins 80. The pivots 77 are mounted eccentrically on the shaft 28 of the cam C<1>, and springs 82 tend to move the toggle levers to the broken position, and in this position the rollers 73 press the separated blank against the rotary members R<3>, R4. For advancing the blanks along the arcuate path other spring-pressed rollers 85, 86, 87 press the blanks against other rotary members R2, R5, the rollers being mounted in curved supporting members supported adjustably from an upper member 16. Curved guides are also arranged between the rollers 85, 86, 87. The blanks are finally detached from the rotary members by a comb-like member 100 with inclined teeth which engage between the rotary members. A belt 102 mounted on an adjustable pulley 103 completes the detachment of the blanks from the rotary members with the aid of a curved guide 109 and a side guide mounted near the pulley 103. The blanks are finally fed to the operating machine by a pair of chains 68 fitted with projections 98 which are arranged to engage notches in the blanks for registration purposes. The rotary members R are preferably covered with rubber, and are carried by a sleeve 158, Fig. 12, which rotates freely of the shaft 58 which drives the sleeve. The sleeve is driven from a gear 64 on the shaft 58 by means of gears 65, 165 and 164, and the gearing is so arranged that the shaft 58 rotates at a speed which is slightly different from that of the rotary members so as to ensure even wear of the rotary members which coact with the rollers 73.
Patent GB-595405-A (GB)
Title: Apparatus employed for computing illumination
IPC: G01J1/00
Filed: 1944-08-18
Abstract: 595,405. Photometric apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 18, 1944, No. 15795. Convention date, Aug. 18, 1943. [Classes 97 (i) and 98 (ii)] Apparatus for determining the extent to which various sources, such as windows &c. are effective in illuminating a reference surface 2, comprises a convex mirror 4 located on the surface and a camera 1 directed towards the mirror, the curvature of the mirror being such that if a sphere source of light be moved around the mirror in a semicircle whose centre lies at the intersection of the reference surface with the mirror axis, the movement of the source being on the camera side of the mirror and in a plane which includes such axis, the size of the image of the source formed in the camera by reflection in the mirror is proportional to the amount by which a point of the surface would be illuminated by the source at each position. If a room be so photographed the sizes of the images of the various sources of illumination are proportional to the size of the projection of the source on the plane of reference.
Patent GB-1396886-A (GB)
Title: Conductive papers
IPC: G03G5/10
Filed: 1971-05-19
Abstract: 1396886 Electroconductive paper ALLIED COLLOIDS LTD 16 May 1972 [19 May 1971] 15796/71 Heading D2B [Also in Division C3] Paper is made electrically conductive by coating or impregnating with a composition comprising a crosslinked polymer formed from a polymer in which at least 70% of the recurring units have the formula wherein R 1  is H or CH 3 , R 2 , R 3  and R 4 , which may be the same or different, are C 1-4  alkyl, and X is Cl or Br, and which also includes methylolated acrylamide or methylacrylamide units. The paper may be immersed in an aqueous solution of the uncrosslinked polymer and dried and cured to form the crosslinked polymer by heating on heated rolls.
Patent GB-544938-A (GB)
Title: Improvements in or relating to optical scale-reading apparatus
IPC: G01C1/06
Filed: 1940-10-29
Abstract: 544,938. Measures of length. KAPELLA, Ltd., and WARMISHAM, A. Oct. 29, 1940, No. 15819. [Class 106 (ii)] [Also in Group XX] Scale-reading apparatus comprises an optical system for projecting an image of the scale into a plane containing a first reference line at right angles to the length of the scale and also containing a second reference line parallel to the scale and vernier scale extending at right angles to the scale, the first reference line and one of the other markings being carried by a graticule movable in a direction slightly inclined to the reference line. Superposed images of the markings may replace the actual markings in the plane of the image of the scale to be read and the superposed images may be projected on to a screen or viewed through a lens system. As shown in Fig. 1, a vertical scale B is lighted by a source D in conjunction with a condenser D<SP>1</SP> and mirror D<SP>3</SP> and a condenser D<SP>2</SP> and mirror D4, these elements being contained in one compartment A<SP>1</SP> of a casing A having a vertical wall C in which is a vertical slot-like aperture. The imaging system comprises two equal collimating lenses E<SP>1</SP>, E2 and an objective E, optically associated as described in Specification 498,419, [Group XX], and arranged in conjunction with prisms E<SP>3</SP>, E4 to produce an image in the focal plane of an eyepiece F, all these elements being housed in a second compartment A<SP>2</SP>. Fixed and movable graticules G, H, respectively, are arranged in the image plane, the graticule G carrying a vertical line G<SP>1</SP>, Fig. 3, and the graticule H carrying a horizontal line H<SP>1</SP> and scale H<SP>2</SP> and being carried by a block H<SP>3</SP> reciprocable along an inclined guide H4 by a spring and a screw operated by an external knob. The graduations of the scale H<SP>2</SP> and the inclination of the guide are chosen so that the scale serves as a vernier, the scale comprising, for example, 25 divisions and being raised one division of the image of the scale B m a complete traverse of the line G<SP>1</SP>, the measurement being thus effected in thousandths of an inch if the divisions of the scale B are fortieths of an inch. Modifications of the optical system are described in which the collimating lenses E<SP>1</SP>, E<SP>2</SP> are of unequal focal lengths, or the erecting prisms E3, E<SP>4</SP> are replaced by a lens system similar to and in tandem with the lenses E<SP>1</SP>, E, E2, or, for reading inaccessible scales, the microscope eyepiece is replaced by a telescope system, bowden wire or other remote control means being provided for the graticule H.
Patent GB-300527-A (GB)
Title: Improvements in or relating to devices for displaying advertisements or the like
IPC: G09F13/00
Filed: 1927-06-14
Abstract: 300,527. Gee, G. June 14, 1927. Reel and endless-web apparatus.-An advertising device, route indicator, &c. comprises an opaque front plate 1, perforated with openings in the form of words &c., and a band 3 intermittently moved behind the plate 1 so as to obscure and reveal suddenly the letters &c. The band 3 may have white and coloured portions to show up and obscure the letters, or may have open spaces through which a light-coloured background 2 can be seen.
Patent GB-240128-A (GB)
IPC: H02P9/24
Filed: 1925-06-19
Abstract: 240,128. Eclairage des VÚhicules sur Rail. Sept. 20, 1924, [Convention date]. Regulation, automatic.-In the method of automatic regulation of the voltage of dynamos subject to variable speed or load, shown in Fig. 1, in which a vibrating relay 5 is arranged to shunt alternatively the dynamo field 2 and a resistance 3 in the dynamo field circuit, one or more electromagnetic switches, energized by the potential across either the field windings 2 or the total field resistance 3, are arranged to insert additional resistances automatically in parallel with the field winding or with the field resistance, or in series with both, in such a way as to increase the limits of regulation. The field resistances may have a high temperature co-efficient. Fig. 3 shows two electromagnetic switches 13, 13<1> arranged to introduce, successively, resistances 10, 10<1> into parallel with the field resistance 3. Resistances similarly controlled may be used additionally or alternatively in parallel with the field. 2. Fig. 7 shows switches 13, 13<1> arranged to introduce resistances 16, 16<1> in steps in series with the field 2 and field resistance 3. The actuating coils are provided with adjusted resistances 15 and may be cross-connected, e.g. a switch controlling additional resistance in parallel with the field may be connected across the field resistance.
Patent GB-1329517-A (GB)
Title: Cathode-ray tube electrostatic focusing and deflection
IPC: H01J29/46
Filed: 1972-04-06
Abstract: 1329517 Cathode-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 April 1972 [9 April 1971] 15914/72 Heading H1D A combined focusing and deflecting electrode system for a cathode-ray tube comprises three cylindrical electrodes 6, 7, 8, electrode 7 being divided into at least eight mutually insulated segments 9 to 16 to which respective deflecting voltages can be applied in addition to the focusing voltage. The deflecting voltages are related to the desired deflection expressed relative to x, y co-ordinates and to the angular co-ordinate of the relevant segment about the tube axis.
Patent GB-151711-A (GB)
Title: Improvements in connection with electrically heated liquid heaters
IPC: H05B6/02
Filed: 1919-06-26
Abstract: 151,711. Lauth, C. H. June 26, 1919. Heating by electricity.-In a liquid-heater, in which the heating-element, such as the shell of a vessel or an immersed resistance, is connected with the secondary of a transformer attached to the vessel, the liquid is caused to circulate through a metal path in direct or indirect contact with the transformer before passing to the vessel. In one arrangement, Fig. 1, a copper pipe b, forming the secondary of a transformer f, receives feedliquid through a pipe c and is connected with the vessel a, one end b<3> of the pipe being plugged to cause water to pass through the other end b<2> only. In a modification, both ends are open, the feed-pipe c being connected at an intermediate point of the pipe b. In another arrangement, the transformer casing contains oil, and the feed-pipe c is extended to form a worm or series of pipes so as to cool the oil; the worm &c. may be connected directly with the vessel, in which case the tubular secondary is replaced by a bar i of the shape shown in Fig. 6. In the arrangement shown in Fig. 6, a liquid-jacket k, surrounding the transformer, which may be immersed in oil, is connected with the vessel a by a pipe m and has a feed connexion l at the bottom, the secondary being either a bar i or tubular. The part of the tubular secondary adjacent to the transformer is made of large section. An immersed heating- element may be connected with the ends of the secondary, which are insulated from the vessel.
Patent GB-386220-A (GB)
Title: Improvements in or relating to magnetic alloys
IPC: C22C38/02
Filed: 1932-06-07
Abstract: Magnetic iron alloys for use in the construction of electrical apparatus contain 0,1-6 per cent of silicon and 0,1-6 per cent of arsenic.  The alloys may be made by adding arsenic or ferro-arsenic to molten iron or by passing a stream of arsenic hydride or arsenic vapour into molten iron, the silicon being afterwards added as such or as ferro-silicon; or an alloy or compound of arsenic, silicon, and iron may be added as the iron is being poured into the ladle.  Rolled sheets of the alloy may be annealed by heating in air, a neutral atmosphere, or hydrogen, for 2-8 hours at 900-1100 DEG  C.  In making laminations, the sheets may be annealed for several days at 900-1100 DEG  C., cooled in the furnace, punched, and re-annealed for a similar time at 700-800 DEG  C.  Specifications 351,532 and 360,905 are referred to.