baber/WOPTO huggingface dataset:
Patent GB-301175-A (GB)
Title: Manufacture of new azo-dyestuffs
IPC: C09B29/15
Filed: 1927-10-28
Abstract: 301,175. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 28, 1927. Azo dyes; lakes.-Azo dyes for wool, cotton and lakes are prepared by combining an aromatic diazo-compound with 2: 6-naphtholcarboxylic acid. Wool is dyed yellowish-red to brown, turning to blue to violet to black when after chromed and cotton reddish to brownish shades by chrome printing. The following diazo components are specified : aniline, p-chloraniline-o-sulphonic acid, p -nitro-o -aminophenol, o -nitroaminophenol-p - sulphonic acid, picramic acid, 1 : 2-aminonaphthol-4-sulphonic acid, p-chlor-o-aminophenol-o-sulphonic acid, p-nitro-o-amino-salicylic acid, o-aminophenol-p-sulphonic acid, p-sulpho-oaminosalicylic acid-azo-a-naphthylamine, 2-naphthylamine-6 : 8-disulphonic acid-azo-a-naphthylamine, benzidine-m-disulphonic acid, o-tolidinem-disulphonic acid, m-dichlorobenzidine disulphonic acid, 2: 1-naphthylaminesulphonic acid, otoluidine-m-sulphonic acid, acetyl-p-phenylenediamine sulphonic acid, p-toluidine-m-sulphonic acid and aniline-o-sulphonic acid. The calcium and barium lakes of the dyes from the last two components are mentioned.
Patent GB-503803-A (GB)
Title: Improvements in and relating to electric signalling installations
IPC: G08B5/36
Filed: 1937-10-21
Abstract: 503,803. Electromagnetic switches. AUTOPHON AKT.-GES. Oct. 21, 1937, No. 28790. Convention date, Oct. 21, 1936. [Class 38 (v)] [Also in Group XXXVIII] A signalling installation for summoning servants in places such as hotels, comprises a number of keys for operating corresponding signals such as lamps and a relay common to all the keys, the armature of the relay being mechanically held in the displaced position when the relay is energized. The contrivance for mechanically holding the relay actuated comprises a plunger AT, Fig. 2, having a pair of stops ZI and ZII on its shank. The armature A carries an extension AB which rests on the shank of the plunger. When the armature is attracted by the pole K the plunger is released and is moved by the spring F until the stop ZII abuts against the part AB. On further movement of the armature the plunger is again released and moves so that the part AB rests on the stop ZII. When the part AB rests on the stop ZI the contact rI is actuated and when it rests on the stop ZII the contact rII is also actuated. The plunger is pressed in by hand to re-set the relay.
Patent GB-427477-A (GB)
Title: Improvements in mechanism for feeding paper through printing machines
IPC: B65H5/00
Filed: 1933-10-18
Abstract: 427,477. Feeding webs. HARRIES, A. W., 31, Cole Park Road, Twickenham, Middlesex. Oct. 18 1933, No. 28829. [Class 100 (i)] In the mechanism described in Specification 389,621 for feeding paper through printing- machines, in order to overcome difficulties due to the momentum acquired by the ratchet wheel r, which is intermittently rotated by the pawl s, there is provided a supplementary pawl and ratchet gear which is adapted to drive the shaft 30 carrying a feed-roller, when the main pawl s is raised out of contact with the teeth of the ratchet wheel r, this being done before the shaft m has completed its partial rotation, whereby part of the intermittent movement of the feed roller is produced by the pawl and ratchet s, r, and the remainder by the supplementary device. The ratchet wheel r is so connected to the shaft m that clockwise rotation of the ratchet only is transmitted to the shaft m and the supplementary feed is obtained from an eccentric 35, mounted on the intermediate shaft e of the mechanism of the prior Specification referred to, and connected by a linkage 36, 37 to a sleeve 38 loose on the shaft 30, but carrying a pawl 39 engaging the teeth of a ratchet 40 fixed to the shaft. The shaft 30 is geared to the shaft m, and the shaft 30 and a shaft 31 carry the paper feed rollers. The throw of the eccentric is adjusted so that, when the pawl s is raised by coming into contact with a stop before completion of the partial rotation of the shaft m, the sleeve 38 is swung to throw the pawl 39 into engagement with the ratchet 40 to complete the rotation of the feed roller. A shield 41 raises the pawl 39 clear of the ratchet 40 during its idle return movement. According to the Provisional Specification, the supplementary feed is controlled by a cam.
Patent GB-966706-A (GB)
Title: Improvements in or relating to electrical circuit arrangements
Inventor: HILLEN CECIL FREDERICK JOHN
IPC: H03K3/26
Filed: 1959-08-24
Abstract: 966,706. Transistor pulse circuits. POSTMASTER GENERAL. Nov. 24, 1960 [Aug. 24, 1959], No. 28923/59. Heading H3T. In a circuit comprising a number of trigger circuit devices T1-T5, Fig. 4 (Prov.), each having two stable states in which transistors TX1 or TX2 or their counterparts in other devices are respectively rendered conductive in response to respective inputs on leads C1 and C2 or their counterparts, the devices are grouped in stages T1, T3, T5, T2, T4 and the input leads to each device T1 in one stage, except the last, are joined through isolating " or " gates, X1 X2 to one input C12 of a trigger device T2 in a succeeding stage. A -VE pulse on terminal C1 thus renders conductive transistor TX2 and its counterparts in T2 and T4 and series connected transistors TX3, TX5, TX6; transistor TX4 and its counterparts being inhibited whereby earth at terminal AL is applied over the series connected transistors to an output terminal A1. If a number of inputs appear on different input leads simultaneously, one path from earth to an output terminal corresponding to one of the inputs is arbitrarily set up and the output (earth) is arranged to effect a selection, and clear the input which made it. A second path corresponding to one of the remaining inputs is then set up, and so on. The trigger circuit arrangement may be biased in favour of an input to a particular one of its terminals and the application of bias may be controlled by a negative switching-on potential being applied to a further transistor connected between the emitter and earth of a trigger transistor, Fig. 3 (not shown). The trigger devices may comprise N-P-N or P-N-P transistors or may be electromechanical relays or electronic tubes. Biasing arrangements may enable coincident signals to be cleared from the right or the left. An alternative arrangement in which some of the triggers are replaced by a three-position trigger is described with reference to Fig. 2 (not shown). The earth connection may be permanent or through a switch K which may be automatically operated in conjunction with the actuation of the final trigger circuit, and in a modified arrangement described with reference to Fig. 1 (not shown), the outputs from three stages of trigger devices are supplied to their respective output terminals A via a corresponding number of " AND " gates.
Patent GB-951377-A (GB)
Title: Improvements in the control of electric motors
Inventor: COBB GORDON EDWIN
IPC: H02P1/58
Filed: 1959-08-24
Abstract: 951,377. Control of several A.C. motors. BLACKSTONE & CO. Ltd. July 20, 1960 [Aug. 24, 1959], No. 28928/59. Heading H2J. A number of diesel engine generator sets 1a-1e are adapted to be connected to bus-bars 2 for starting induction motors 5a-5k in sequence, the motors driving pumps under the control of float switches 18a-18k, and the starting of the next motor in the sequence being prevented unless the requisite generator capacity is available. The load is detected by current transformer 7 connected to magnetic amplifier 8 for biasing it in one direction, opposite bias being provided by a reference winding energized through resistors 10a-10e in accordance with the number of generators in service so that the reference current is increased in proportion with the generator capacity. When there are no pumps in operation and float switch 18a closes, current passes from line 19 to the main coil 23 and auxiliary coil 25 of starter 6a to line 13 and magnetic amplifier 8, and thence to line 12. Closure of contact 28 connects the coils 23, 25, directly to the line 12, whereupon change-over switches 26, 27, operate to isolate the line 13 from starter 6a and transfer the control to starter 6b. The magnetic amplifier isolates the line 13 from the line 12 unless the avilable generator capacity is sufficient to overcome the load bias, the control line remaining isolated until the number of generators in service is increased, thereby altering the reference bias to a new value. The sequence is repeated for each starter in turn under the control of the float level switches or, for testing purposes, by switches 20a-20k. The actual order in which the motors start can be varied by means of plug-and-socket connectors 15a, 22a. When the bus-bars become overloaded, the motors are stopped in sequence commencing with the last motor running and continuing until the overload is removed. The magnetic amplifier is set to connect lines 12, 14 when there is a predetermined overload so energizing trip coil 29 to de-energize coils 23, 25, in starter 6k for example. The tripping sequence continues until the bus-bar current is low enough to switch off the tripping circuit. Warning circuits are provided to indicate the condition of the starting sequence and tripping sequence respectively.
Patent GB-757977-A (GB)
Title: Improvements in or relating to bladed rotors
IPC: F01D5/34
Filed: 1950-11-27
Abstract: 757,977. Turbines and compressors. STALKER, E. A. Nov. 27, 1950, No. 28951/50. Class 110(3) [Also in Group XXIX] A rotor for use in turbines or compressors comprises a hub H having axiallyspaced sheet metal side plates 20 and hollow sheet-metal blades 15, the root portions 14 of the blades being disposed between the side plates and. being secured thereto by means which include bonding by fused metal for example soldering. Rim closures 22 having external flanges 40 and internal flanges 40a are disposed between adjacent blades, the flanges 40 being soldered to the side plates 20 and the flanges 40a being soldered to the blade roots 14. A damaged blade may be cut out and replaced by a blade 30 as shown in Fig. 2, the new blade having lateral flanges 36 which are mounted in radiallydisposed slots 34 cut in the rotor side plates 20. A rim closure 22 is disposed around the new blade and the blade is secured by soldering. The bladed rotor itself may be built up by the construction indicated in Fig. 2. In Fig. 9, the rotor side plates 52 have inwardly-turned flanges 50 which are formed with slots corresponding to the shape of the blades, and with radial slots to receive the lateral flanges 36 on the blade roots. Rings 56 extend around the side plates above the flanges 36. Dimensions and proportions are given. Specifications 724,074, 757,978, 757,979 and 757,980 are referred to.
Patent GB-999108-A (GB)
Title: Fluorinated aromatic compounds and their application
Inventor: BELF LEON JERZY
IPC: C01B17/60
Filed: 1962-07-30
Abstract: Compounds of the formula X-C6F4-OH, in which X is chlorine, bromine or iodine, are prepared by treating a compound of the formula C6F5-X with an alkali-metal hydroxide in alcoholic solution.  The preferred alkali-metal hydroxide is potassium hydroxide and the preferred alcohol is tertiary butanol.  Examples are given of the preparation of chloro-, bromo-and iodo-tetrafluorophenol.  The products are useful as components of fungicidal compositions (see Division A5).ALSO:As components of fungistatic compositions, use is made of compounds of the formula X-C6F4-OH, in which X is chlorine, bromine or iodine.  Comparative examples of the use of the products are given, and in one of these the products are formulated as non-ionic based creams.
Patent GB-1023853-A (GB)
Title: Polymerization catalysts preparation
IPC: C08F136/04
Filed: 1963-07-24
Abstract: The preparation of the catalyst of the parent Specification is modified by reacting the components at a temperature in the range -80 DEG  to + 10 DEG  C.
Patent GB-633836-A (GB)
Title: Improvements in or relating to hot air furnaces
IPC: F24H3/08
Filed: 1946-10-02
Abstract: 633,836. Air-heating furnaces. ABBEY, A. (Miles, J. C.). Oct. 2, 1946, No. 29412. [Classes 64(i) and 64(iii)] In an air-heating furnace comprising a combustion chamber 16, a grate 19, and a smoke chamber formed by walls 37, 38, an air-heating chamber 11 extends from the front to the rear of the furnace on opposite sides of the combustion chamber the air inlet being at the bottom and the air outlet at the top, there being fire-tubes 46, disposed in the air heating chamber each having one end opening into the upper part of the combustion chamber and the other end opening into the smoke chamber, the fire-tubes extending downwardly in the air-heating chamber to substantially the grate level and then upwardly, close to the downward reach to form passageways for the air. The cross-section of the fire tubes is substantially elliptical, and between points 52, 53 on the upward reach, the cross-section is turned through 90 degrees with respect to the remainder of the tube cross-section to form a baffle for deflecting the air to the hottest portion of the tubes. Baffles 60 extend between the points 52, 53 and between one firetube and the next, and comprise corrugated curved plates, (see Fig. 6) a corrugated fin 61 on each baffle extending from the mid-portion thereof to the wall 15 of the combustion chamber. Air blown by fans 31 into the air-heating chamber, is heated by contact with the firetubes and is discharged through funnels 70 at the top of the casing. The air pressure of the blowers is sufficient to swing open the dampers 27 so that air may enter the furnace ashpit through apertures 20 to support combustion. A manually operated damper 41 regulates the flow of combustion gases through the airheating tubes. Specification 605,375 is referred to.
Patent GB-960236-A (GB)
Title: Hydroxy-containing imines and their use as curing agents
IPC: C08G59/40
Filed: 1961-08-15
Abstract: The invention comprises a reaction product of one or more compounds comprising at least one epoxy group and one or more imines possessing at least one amino hydrogen.  The imine is preferably a condensate of an aliphatic polyamine with an aliphatic, aromatic or heterocyclic aldehyde or ketone, and is exemplified by 2,4,12,14-tetramethyl - 5,8,11 - triaza-4,11-pentadecadiene and similar compounds optionally containing halogen substituents.  The epoxy containing component is preferably an epoxidized monoethylenically unsaturated hydrocarbon exemplified by styrene oxide, allyl glycidyl ether, cyclohexene oxide, glycidol, glycidyl esters and similar compounds optionally containing halogen atoms, or is a polyepoxide exemplified by polyglycidyl esters of polycarboxylic acids, polyglycidyl ethers of polyhydric alcohols and poly-epoxidized polyethylenically unsaturated hydrocarbons.  The reaction products may be prepared by mixing preferably equivalent amounts of epoxy compound any imines at temperatures ranging from 50 to 200 DEG C. in the presence of an inert solvent. The above reaction products may be used to cure polyepoxides.  2,4,12,14 - Tetramethyl - 5,8,11 - triaza-4,11-pentadecadiene is prepared by refluxing 3 mols of methyl isobutyl ketone with 1 mole of diethylenetriamine.ALSO:Polyepoxides are cured by admixture with a reaction product of one or more compounds comprising at least one epoxy group and one or more imines possessing at least one amino hydrogen, and subsequent exposure to moisture. Other curing agents such as aliphatic polyamines, anhydrides, BF3-amine complexes and polythiols may also be present. Prior to exposure to moisture, the curable mixture may be applied to concrete, asphalt, metal, plaster, stone or wood surfaces, or to glass matting, paper, asbestos paper, mica flakes, cotton bats, duck muslin and canvas to provide reinforced laminates. Specified polyepoxides are glycidyl ethers of polyhydric alcohols and polyhydric phenols, glycidyl ethers of alpha, alpha, omega, omega-tetrakis(hydroxyaryl alkanes, epoxidized esters of polyethylenically unsaturated mono and poly-carboxylic acids, epoxidized esters of unsaturated alcohols and poly-carboxylic acids, epoxidized esters of unsaturated alcohols and unsaturated carboxylic acids, epoxidized esters of unsaturated polyhydric alcohols and unsaturated poly-carboxylic acids and epoxidized polyethylenically unsaturated hydrocarbons or copolymers thereof.
Patent GB-870283-A (GB)
Title: Improvements in and relating to air heaters
Inventor: HARDY LEWIS EMPSHALL
IPC: F23M20/00
Filed: 1958-09-15
Abstract: 870,283. Air heating apparatus. SENIOR ECONOMISERS Ltd. Dec. 1, 1959 [Sept. 15, 1958], No. 29488/58. Class 64(1) In a steam generator air heating system, air to be passed to the combustion space of the steam generator by way of a main air heater 10 heated by the flue gases, is augmented by and has its temperature raised by auxiliary air which prior to its admixture with the main air has been heated in an auxiliary air heater 6 through which a portion of the said flue gases from the steam generator combustion space are passed. In the form shown, the auxilliary air heater 6 is located in a valve-controlled by-pass duct 5 in the steam generator flue, and air may be supplied thereto by the main air blower 12 or as shown, by a separate blower 7.
Patent GB-684563-A (GB)
Title: Improvements in and relating to the manufacture of viscose
IPC: D01F2/08
Filed: 1949-11-18
Abstract: A process for the manufacture of viscose, designed to employ substantially the whole of the original cellulose including the hemicellulose, comprises steeping the cellulose in 17-25 per cent caustic soda solution, pressing the alkali-cellulose so-formed to remove the caustic soda liquor containing hemicellulose, xanthating the alkali cellulose by treatment with carbon disulphide, dialysing at least part of the caustic soda liquor from the pressing and adding to the reject liquor from the dialysis any remaining portion of the "pressings" to form a xanthate dissolving liquor, the concentration of which is adjusted, by dilution or addition of dilute caustic soda solution, to 3.5 per cent by weight, and finally mixing this liquor with the xanthate to form viscose.  The original cellulose may be in the form of a slurry or in sheets during steeping.
Patent GB-538085-A (GB)
Title: Improvements in and relating to catalytic lighters
IPC: F23Q2/30
Filed: 1939-11-07
Abstract: 538,085. Catalytic cigarette lighters. LEKTROLITE CORPORATION. Nov. 7, 1939, No. 29597. Convention date, Dec. 31, 1938. [Class 75 (iii)] A catalytic cigarette lighter comprises a tubular casing 10 formed at the lower part with a compartment 12 for an absorbent fuel reservoir 32 and at the upper part with a passage 14 provided with shoulders 17, 20 to receive respectively a resilient valve seating 27 and a catalyst pellet 22 which is held between screens 21, 23 by a retainer ring 24. The fuel reservoir 32 is mounted between flanges 34, 37 on a valve operating rod 33 and is pressed downwardly by a spring 36 against a gasket 38 in a bottom member 39 screwed to the casing 10. On pressing a knob 33<SP>1</SP> at the bottom of the rod 33 upwardly into a recess 46 in the member 39 air can pass through passages 47 in the knob to the fuel compartment 12 and the valve 27 is lifted against the resistance of a spring 31 to allow a mixture of fuel and air to reach the catalyst which becomes incandescent when a cigarette applied thereto is drawn upon. In a modified construction the fuel compartment is threaded on to the upper part and a valve fitted in a false bottom in the fuel compartment is operable by a knob to allow air to pass to the fuel compartment and to press the fuel reservoir upwardly to open a second valve and allow the mixed fuel and air to pass to the catalytic pellet.
Patent GB-1362184-A (GB)
Title: Electrically insulating coatings
IPC: H01F1/147
Filed: 1970-06-18
Abstract: 1362184 Coated steel products BRITISH STEEL CORP 17 June 1971 [18 June 1970] 29641/70 Heading B2E [Also in Division C4] Electrical steel sheet is provided with an electrically insulating coating applied as a composition consisting of an aqueous mixture of sodium or potassium silicate plus calcium silicate, in the proportions 100 p.b.w. sodium or potassium silicate, 5-200 p.b.w. calcium silicate and 10-2000 p.b.w. water, the silica: alkali metal oxide ratio in the sodium or potassium silicate being 1.65-398:1. The coating may be applied by a grooved roller to form a film of 1-2 ten thousandths of an inch in thickness which may be dried at 150-800‹C, e.g. 300‹C.
Patent GB-533668-A (GB)
Title: Improvements relating to windows and panels
IPC: E06B3/54
Filed: 1939-11-09
Abstract: 533,668. Glazing window frames. SLEIGH, H. L., CHESTON, A S., and OLDHAM. F. A. M. Nov. 9, 1939, No. 29693. [Class 20 (iii)] A window mounting, especially for aircraft, in which the outer side of the window panel is substantially flush with  its mounting, comprises a panel 1 bevelled at 5 to form a surface which mates with an inclined surface on the wall 3 of a rectangular frame which in cross section comprises a horizontal base part 2 having a flanged edge 4. The panel is held against the frame by a resilient rubber strip 10 which is engaged by the flange 4, and is held against the panel by an edging strip 6. A complete window comprises a number of adjacent frames rigidly joined by coupling members 12 secured by rivets 16, with additional rivets 17 where required. Various modifications of the panel mounting are described, and in Fig. 8 the edges of the panel are bent inwards at 21 a shoulder 22 engaging below the square lower edge of the panel.