baber/WOPTO huggingface dataset:
Patent GB-452102-A (GB)
Title: Direct reading radio direction finders
IPC: G01S1/02
Filed: 1935-02-25
Abstract: 452,102. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Materiel Telephonique Soc. Anon.) Feb. 25, 1935, No. 7218/36. Convention date, May 24, 1934. Divided out of 450,027. [Class 40 (i)] [See also Group XL] In a direct reading radio direction finder employing a continuously rotating loop, the output of which is fed to an indicator coil pivoted in a rotating magnetic field, the magnetic field is set up by polyphase currents produced by a potentiometer type generator which is rotated at a speed bearing a predetermined relation to the speed of the loop. The combined outputs of the loop 1 and a vertical aerial 2 are fed to the movable coil 9 of an indicator 11 having a rotating field produced by a potentiometer fed with direct current at opposite points over slip-rings 6 and rotated by a motor 4 which also drives the loop 1. Fixed brushes 26 . . . 29 supply two-phase currents to the inductors 30 . . . 33 of the indicator and the interaction between the current in the coil 9 and the rotating field is such that the needle 13 takes up a position corresponding to the direction of the received waves. In a modification, a loop aerial is used alone and the potentiometer comprises a semicircular resistance having fixed brushes which produce a field rotating at double the speed of the loop.
Patent GB-707402-A (GB)
Title: Troughed idlers for belt conveyors
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G39/09
Filed: 1951-03-28
Abstract: 707,402. Oil seals. MINING ENGINEERING CO.. Ltd. March 19 1952. [March 28, 1951], No. 7232/51. Class 122(5) [Also in Group XXX) A seal for the bearing 9 of a belt conveyer idler (see Group XXX) comprises a felt washer 20 retained by a metal washer 21 and a snap ring 18 engaging in a groove in the bearing house. The washers are housed in a groove in a distance piece 19.
Patent GB-1450331-A (GB)
Title: Pumps
IPC: F16J15/16
Filed: 1974-02-19
Abstract: 1450331 Shaft seals THUNE EUREKA AS 19 Feb 1974 [27 June 1973 5 July 1973] 7381/74 Heading F2B Oil flung out into chamber 26, during pump operation, has a rotary motion imparted to it by contact with the rear wall of the pump impeller 27. The rotating ring of liquid so formed is in fluid communication, through bore 40, with relief valve 37 and, when the fluid pressure, due to angular acceleration, opens the valve 37, the chamber 26 is emptied through duct 25. In the stationary state, the chamber 26 may be emptied through ducts 9 and 25, under the pressure of a flushing gas, introduced through a duct (not shown). The bore of relief valve 41 is greater than that of valve 37, so that valve 41 lifts off its seat at a lower fluid pressure.
Patent GB-528624-A (GB)
Title: Improvements in or relating to luminous indicators for numerals and allied signs
IPC: G09G3/00
Filed: 1939-03-07
Abstract: 528,624. Monogrammic signs. NEOGRAPH, Ltd., and KNEPPER, F. March 7, 1939, No. 7398. [Class 118 (ii)] An apparatus for successively displaying one or more numerical or allied luminous signs in a predetermined order comprises a display panel of known type and a motor-driven selector switch having a plurality of correlated groups of contact makers, each of which is adapted to control the display of a portion only of the panel, in synchronism with appropriately-driven mechanism. Preferably the device is used to indicate the time, but it may be used for displaying the level of water, or the direction of the wind, or the temperature or pressure of the atmosphere. The universal panel consists of a baseplate on which three groups of electric discharge tubes A, B, C, Fig. 1, are secured. These tubes are switched on or off bv contacts in a motor-driven switch preferably of the kind described in Specification 523,042. The switch consists of three rotary groups of contacts A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP>, Fig. 2, each comprising a fixed contact bar d of insulating material carrying a series of contacts 1-20 connected to the electrodes of the corresponding groups of discharge tubes, and a cylinder e of insulating material carrying groups of contact studs. The cylinder is rotated step-by-step by a pin p<SP>1</SP>, Fig. 4, on a crank f mounted on an axle x which is driven at the correct speed by a suitable motor operated by electricity, a spring, or gravity. A similar device is used for each drum to drive the next, the last drum driving a contact m which indicates A.M. or P.M. An arm carrying a discharge tube and indicating seconds may be included. When indicating rising and falling tides or the level of water, indications may be controlled by a switch operated by a ffoatactuated pulley. The switch may be operated also by mercury or aneroid barometer or a bi-m etallic or bulb thermometer. Specification 525,855 also is referred to.
Patent GB-858140-A (GB)
Title: The preparation of new basic phenothiazine derivatives
IPC: C08K5/00
Filed: 1958-03-07
Abstract: The invention comprises compounds of the general formula: <FORM:0858140/IV(b)/1> and their acid addition salts (wherein R1 is a C2-3alkyl group ; R2 is a hydrogen atom or a C1-6 alkyl group ; and Y is the radical of a 5 or 6 membered heterocyclic, non-aromatic amine that may contain a second hetero atom in the form of an oxygen or an alkyl substituted nitrogen atom) ; and the preparation thereof by : (1) condensing a compound of the general formula : <FORM:0858140/IV(b)/2> with a compound of the general formula : <FORM:0858140/IV(b)/3> (wherein Hal is a bromine or chlorine atom); and (2) reacting a compound of the general formula: <FORM:0858140/IV(b)/4> with a compound of the general formula: <FORM:0858140/IV(b)/5> to get a compound of the general formula: <FORM:0858140/IV(b)/6> which is then decarboxylated by heating.  3 - Ethylmercepto - phenthiazine - 10 - carboxylic acid chloride is made from 3-ethylmercaptophenthiazine and phosgene.ALSO:Compounds of the general formula:  <FORM:0858140/VI/1> and their acid addition salts (wherein R1 is a C2-3 alkyl group; R2 is a hydrogen atom or a C1-6 alkyl group; and Y is the radical of a 5 or 6 membered heterocyclic, non-aromatic amine that may contain a second hetero atom in the form of an oxygen atom or an alkyl substituted nitrogen atom) may be administered either orally in the form of pills or tablets, or parenterally, for example by sub-cutaneous injections.  Specified salts are hydrochlorides, maleates, fumarates, tartrates and oxalates.
Patent GB-439540-A (GB)
Title: Improvements in and relating to change speed gears for cycles
IPC: B62M25/00
Filed: 1935-03-11
Abstract: 439,540. Variable-speed ratchet gearing. VINCENZONI, A., 30, Viale del Vignola, Rome. March 11, 1935, No. 7530. Convention date, March 9, 1934. [Class 80 (ii)] A cycle-driving chain-wheel 12 is adjusted eccentrically relative to the pedal-shaft 2, for speed increase or reduction, the variable drive being effected through transmission links 23, pivoted near the periphery of the chain-wheel, and pivotally carrying at their inner ends, friction pawls 25, adapted to wedge in an annular groove in a disc 5, secured to the pedal-shaft 2. In order to provide for speed reduction, the pawls 25 are only allowed to assume a wedging position during part of the upper arc of their travel, a stationary cam 28, Fig. 7, being provided to engage lateral projections 26 on the pawls, so as to tilt them, against spring-bias 27, into an idle position for the remaining arc. The chain-wheel is rotatably mounted on a ball-bearing 11 in a chain-case 9, which, when the chain wheel is adjusted, swings about a pivot 10, near the rear hub of the cycle and is guided by forward posts 16, hinged to the cycle frame. Adjustment is effected by turning a hinged bolt 20, screwing through a lug 19, pivotally carried by the chain case 9. For cycles having back-pedalling hub brakes, there is a disc 29, rotating with the pedal-shaft and bearing, through balls, against inclines on a stationary disc 31. When the pedal-shaft is reversely rotated, the balls ride up the inclines, forcing the disc 29 axially, so as to apply pressure, through a spring disc 7, against the pawls 25, thereby holding them against the disc 5 and providing for a reverse transmission to the back-pedal brake. There is a small permanent horizontal eccentricity between the chain wheel and pedal-shaft.
Patent GB-724567-A (GB)
Title: Improvements in or relating to silica-alumina catalyst
IPC: B01J21/12
Filed: 1953-03-18
Abstract: A hydrocarbon conversion catalyst containing 20-60 per cent by weight of alumina and 80-40 per cent by weight of silica is prepared by mechanically mixing a silica hydrogel having a silica content of 3-20 per cent by weight with an alumina hydrosol containing 1-5 per cent by weight of alumina, continuing the mixing at least until the silica hydrogel reverts to a hydrosol (aqueous ammonia may be added to aid this reversion), drying the resulting mixture at a temperature of about 250 DEG F.-500 DEG F., followed by activation at at least 1,000 DEG F.  The alumina hydrosol is prepared by treating amalgamated aluminium with dilute acetic acid or formic acid, or from the aluminium alcoholate of a preferably water insoluble alcohol whilst the silica hydrogel may be prepared by treating sodium silicate solution with a mineral acid and is washed substantially free of alkali metal.
Patent GB-164844-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H15/28
Filed: 1920-03-15
Abstract: 164,844. Clayton, M. G., and Sherlock, L. I. March 15, 1920. Variable-speed friction gearing comprises driving and driven elements b, c connected by a spherical idlar a, the pivotal axis d of which can be tilted to vary the speed, and which is mounted so that it can be withdrawn to disconnect the drive. The axle d to which the idler a is secured turns in a bearing e adapted to turn in the plane of the paper upon trunnions f supported in a fork g on the end of a non-rotary spindle h. The inclination of the axle d is varied by turning a lever p. The spindle h is normally thrust inwards by a spring i, but can be pulled outwards to disconnect the drive. The invention is applicable to machine tools such as drilling and shaping machines and lathes.
Patent GB-985107-A (GB)
Title: Process for the manufacture of thermoplastic polyureas
IPC: C08L75/02
Filed: 1962-01-04
Abstract: Linear polyureas are made by a process wherein there is copolymerized with a carbonic acid derivative a mixture including a cycloaliphatic diamine of the general formula <FORM:0985107/C3/1> in which R1 and R2 each indicate hydrogen or a low alkyl radical and may be the same or different, and a diamine of the general formula CH3-(CH2)7 or 8-CHX-(CH2)8 or 7-CH2-NH2 in which -X indicates -NH2 or -CH2NH2 or the diamine from a dimerized linoleic acid and/or a straight chain aliphatic diamine which may contain in the chain a hetero atom such as O or S.  A monofunctional compound may be added to the reaction mixture as a chain-breaker, e.g. a monoamine, a monocarboxylic acid, naphthalene sulphoric acid or dodecylbenzene sulphonic acid.  The diamine mixtures may be condensed with ureas, diureido compounds, carbonic acid under pressure, phosgene, carbonic acid esters or di-imidazolyl carbonyl.
Patent GB-1173257-A (GB)
Title: Internal Combustion Engine Fuel Feed System
IPC: F02M71/00
Filed: 1968-02-16
Abstract: 1,173,257. Regulating; spray carburetters. FORD MOTOR CO. Ltd. Feb. 16, 1968 [March 1, 1967], No. 7672/ 68. Heading F1B. The control lever 14 of a fuel injection pump is connected to a lever 84 controlling a fuel valve 76 in a carburetter, which valve is closed at low loads and opened at loads above a predetermined load, e.g. 60% of full load, whereby fuel-air mixture is supplied to the cylinders in addition to the direct fuel injection. The engine is supplied solely with direct-injection from the idling position 16 of lever 14 up to position 18 at which the injection pump delivery is a maximum. From position 18 up to position 20 the pump delivery stays at the same maximum but valve 76 opens to supply further fuel through carburetter nozzle 78. Lever 14 is actuated from the accelerator pedal 26 and is connected directly by a link 86 to the lever 84. Throttle valve 57 is connected by links 94, 96, to lever 84 and is arranged to open rapidly as lever 84 moves from the idling position 88.
Patent GB-890104-A (GB)
Title: Improvements relating to hydraulic dampers
Inventor: HANCOCK ROBERT MICHAEL
IPC: F16F9/48
Filed: 1959-03-06
Abstract: 890,104. Hydraulic vibration dampers. BRITISH TRANSPORT COMMISSION and WOODHEAD-MONROE Ltd. March 4, 1960 [March 6, 1959], No. 7842/59. Class 108(3). A hydraulic damper comprises a two-part piston 1 working in a cylinder 3 wherein a passage 18 or passages controlling flow of hydraulic fluid on movement of the piston is or are provided in the cylinder and arranged to be closed by movement of the piston so as to provide increased resistance to movement of the piston as its displacement from a neutral position increases. The cylinder 3 is enclosed by the damper body 9 which is in communication with a fluid and air reservoir 10 through an aperture 11. During initial movement of the piston fluid passes through bores 14 and lightly loaded valves 12 to a space communicating with the passage 18 which is eventually closed by the piston so that the fluid has to pass through bores 15 and valves 16 closed by stronger springs 17. Although shown in the same plane, the bores 14, 15 are offset so that the valves 12 do not obstruct the bores 15. The damper may be connected between the bolster and the bogie of a railway vehicle.
Patent GB-1007358-A (GB)
Title: A high voltage electric connector for cathode ray tubes and the like
Inventor: GREASLEY ERIC ARTHUR
IPC: H01J29/92
Filed: 1963-02-27
Abstract: 1,007,358. Caps and holders for thermionic valves. PRESSAC Ltd. Feb. 20, 1964 [Feb. 27, 1963], No. 7843/63. Heading H2E. A high voltage electric connector for a cathoderay tube having a rubber cap 1 and side entry socket 3 for a cable 10 is provided with a rigid plastic member 7 which screws on to the tapered socket and has a reduced diameter portion 8 which is longitudinally split. A rigid plastic sleeve 9 screws on to this portion so making it grip the cable firmly, thereby reducing the strain on the joints 6 and 5 where a resistor 4 is soldered to the cable core and contact clip 2.
Patent GB-660396-A (GB)
Title: Labyrinth seals
IPC: F01D11/02
Filed: 1949-03-23
Abstract: 660,396. Stuffing-box substitutes. AVERY, B. A., LAVIOLETTE, J. P. and ROE, CANADA, Ltd., A. V. March 21, 1950 [March 23, 1949], No. 7868/49. Class 122(v) A labyrinth seal between two relatively rotatable members comprises baffles 3 secured to one member 4 and intially in contact with another member 1 which has formed on the surface opposite the baffles an abrasive surface 2, which laps the crests of the baffles 3 during -relative rotation of the members 1, 4. The abrasive surface 2 may be sprayed on or formed by a plating process.
Patent GB-589730-A (GB)
Title: Improvements in or relating to the preparation of benzenesulphonyl thiourea derivatives
Filed: 1945-03-28
Abstract: A metal sulphydrate is reacted with an N-benzenesulphonylisothiourea substituted on the sulphur atom by an alkyl or aralkyl group, and the product treated with an acid to form benzenesulphonylthiourea.  In examples: (1) N - p - amino - benzenesulphonyl - S - methyl - iso - thiourea is mixed with an alcoholic solution of sodium sulphydrate and the product dissolved in water and hydrolysed with acetic acid to form p-aminobenzenesulphonyl thiourea; (2) N - p - acetylaminobenzenesulphonylthiourea is prepared similarly from N - p - acetylamino - benzenesulphonyl - S - methyl - isothiourea using hydrochloric acid instead of acetic acid in the hydrolysis; (3) N-benzenesulphonylthiourea is prepared from N-benzene-sulphonyl-S-methylisothiourea by the method of the first example; and (4) N-p-acetylaminobenzene-sulphonyl-S-benzyl-isothiourea is heated with sodium sulphydrate, the benzyl mercaptan removed by extraction with benzene, the residue hydrolysed with hydrochloric acid, and the N - p - acetylaminobenzenesulphonylthiourea obtained is de-acetylated.  N - p - Aminobenzenesulphonyl - S - methyl - iso - thiourea is obtained by de-acetylation of N-p-acetylaminobenzenesulphonyl - S - methyl - iso - thiourea prepared by condensing p-acetylaminobenzenesulphonyl chloride with a salt of S-methyl-isothiourea in presence of alkali in dilute acetone.  N - p - Acetylaminobenzenesulphonyl - S - methyl - isothiourea is made by condensing p-acetylaminobenzenesulphonyl chloride with the hydrochloride of S-benzylisothiourea in presence of caustic soda in aqueous acetone.
Patent GB-834296-A (GB)
Title: Hair waving device and method
IPC: A45D7/04
Filed: 1957-03-11
Abstract: <PICT:0834296/IV(c)/1> <PICT:0834296/IV(c)/2> <PICT:0834296/IV(c)/3> A method of cold-waving hair comprises applying to the hair an aqueous solution of a reagent capable of splitting the disulphide linkages in hair keratin and subsequently applying a neutralizer from a device contained within the curl, the neutralizer being contained in the device in dry solid form and being leached from the device by application of an aqueous solution.  The hair-waving solution may contain thioglycollic acid and an excess of ammonia or an alkali metal hydroxide, carbonate or bicarbonate, or an organic amine, or mixtures thereof.  The neutralizer may be sodium or potassium bromate, sodium iodate, sodium perborate, urea peroxide or mixtures thereof, sodium percarbonate or sodium perpyrophosphate, and may be admixed with citrates, phosphates, oleaginous materials, inorganic salts which tend to reduce swelling of the hair, polyphosphates, ethylene diamine tetra-acetic acid, sodium carbonate decahydrate, surface-active substances, perfumes and manganese, copper or iron salts which promote the action of the neutralizing compound.  The hair may be treated with the waving solution prior to winding around the device containing the neutralizer, or the hair may be wound around the device and the waving solution may then be applied.  The neutralizer composition, in dry, solid, particulate form 10, Fig. 1, may be enclosed within a sheath of thin porous paper 11, which is then wound about a reinforcing bar 12 and a flexible wire 14 which is used to maintain the hair in position (Fig. 5).  Other forms of the device include a pipe cleaner which has been saturated with an aqueous solution of the composition and dried; a pervious winding member 20, Fig. 7, containing the composition and equipped with a clasp 22; bibulous paper which has been impregnated with an aqueous solution of the composition and dried; paper containing the composition wholly or partly along one side in a narrow sheath, or an end paper upon which has been extruded and solidified a plastic composition containing the neutralizer and a binder such as polyvinyl alcohol or polyvinyl pyrrolidone which may be plasticized, e.g. with glycerine and ethyl alcohol.
Patent GB-129298-A (GB)
Title: Improvements in the Pistons of Internal Combustion Engines.
Inventor: STILL WILLIAM JOSEPH
IPC: F02F3/28
Filed: 1916-06-05
Abstract: 129,298. Still, W. J. June 5, 1916. Pistons, cooling; pistons, attaching to rod. -- The piston of an internal--combustion engine is cooled by steam or liquid circulated through grooves formed in the piston-bead. The invention is especially applicable to the engine described in Specification 25356/10 [Class 7 (ii), Internal-combustion engines, Arrangements &c. of]. The piston-rod is formed with an enlargement 9, Fig. 1, which is secured to the piston-head by bolts 8. Steam admitted through passages 15 controlled by the piston passes through passages 17 to a central recess 13 in the piston which communicates with grooves 5. These grooves may be formed, as shown in Fig. 2, by trepanning annular grooves, which communicate with one another, and are arranged in involute curves. The grooves may be screw-threaded to increase the cooling - surface. Alternatively, annular grooves may be cast in the piston-head, or grooves of other forms may be cut, e.g. by trepanning intersecting circular grooves of half the diameter of the piston, or by cutting intersecting radial and other grooves. When water-cooling is used, the water may enter through the piston-rod and be discharged through an annulus.
Patent GB-925978-A (GB)
Title: Air cleaning filter, especially for internal combustion engines
IPC: F02M35/02
Filed: 1962-03-01
Abstract: 925,978. Centrifugal separators. KNECHT G.m.b.H. March 1, 1962 [April 19, 1961], No. 7941/62. Class 23 [Also in Group XXVIII] Induction air for an internal-combustion engine is purified in a filter comprising a centrifugal dust extractor 1 arranged in the air flow path above an oil bath 15 on which filter bodies 19, 24 are superimposed, a filter insert 26 of large area, i.e. a star-like folded or wound web of filter material being arranged between a central air supply pipe 18 and a housing 12 in the vicinity of an air outlet pipe 27 and being supported at its top against the housing cover 13 and at its bottom against an annular collar 251 provided on an intermediate body 25, e.g. of cupola-like configuration. The dust extractor 1 is surmounted by a cap 4 having an air inlet 3 provided with a sieve 2 and is provided internally with whirl producing blades 5 and a socket 10 which extends outwardly and is secured by a spring clip 11 on a tubular spigot 14 providing a connection with the pipe 18. The oil bath 15 is releasably secured to the housing 12 and contains a perforated baffle-plate 22 disposed about level with the surface of the oil. Each of the filter bodies 19, 24 consists of steel mesh and a fibre mat. In operation, the induction air passes through the sieve 2 which removes the coarser impurities and is whirled by the blades 5 inside the extractor where a proportion of the dust particles is separated and removed through slits 7. The air travels through the socket 10 and pipe 18 and impinges on the baffle-plate 22 where a portion of the remaining particles is retained in the oil whilst the other portion, carried upwards by the air, is finally separated in the filter bodies and insert and purified air is discharged through the pipe 27.
Patent GB-612622-A (GB)
Title: Improvements in or relating to liquids comprising silicyl esters
IPC: C08G77/00
Filed: 1946-04-14
Abstract: A liquid composition which, with the addition of water, may be used for fire-proofing or as a binder comprises an alkoxy, aryloxy or aralkoxy silicane, e.g. ethyl, butyl or cresyl silicates and up to 5 per cent of an organic base having a pH value greater than 7, but not greater than that of piperidine, such as ethanolamine, cyclohexylamine or dicyclohexylamine, but not piperidine or morpholine.  The organic base may be added to the silicyl ester at any stage before gelation.  The silicyl ester may be partially hydrolysed by less than 1 1/2 molecules of water per molecule of ester, the water being present in the ester or in the alcohol from which the ester was made.  Specification 575,752 is referred to.ALSO:An alkoxy, aryloxy or aralkoxy silicane, e.g. ethyl, butyl or cresyl silicate may be partially hydrolysed by less than 1 1/2 molecules of water per molecule of ester, the water being present in the ester or in the alcohol from which the ester was made. Specification 575,752 is referred to.