baber/WOPTO huggingface dataset:
Patent GB-482192-A (GB)
Title: Improvements in or relating to the manufacture of dyestuffs for dyeing leather
IPC: C09B33/22
Filed: 1936-08-21
Abstract: Trisazo dyes, complex metal compounds of; acid wool and mordant dyes, dyeing with.-Dyestuffs yielding on leather dyeings fast to acids, alkalies, washing and light are obtained by treating with compounds of trivalent iron or chromium water-soluble trisazo dyestuffs of the general formula A-N=N-A1-N=N-A2-N=N-A wherein each A represents a radicle of the benzene series of which at least one carries an o-hydroxy group, A1 represents a naphthol-sulphonic acid radicle and A2 represents the residue of 1 : 3-dihydroxybenzene.  Thus, one A may be the residue of an o-aminophenol, such as 4 : 6-dinitro-2-aminophenol, 2-aminophenol-4-sulphonic acid, 5-nitro-2-aminophenol, 4 - nitro - 2 - aminophenol - 6 - sulphonic acid, 4 - chloro - 2 - aminophenol - 6 - sulphonic acid or 3 - amino - 4 - hydroxytoluene - 5 - sulphonic acid, A1 may be the residue of an aminonaphtholsulphonic acid, such as 1 : 8 : 4, 1 : 8 : 5, 2 : 8 : 6- or 2 : 5 : 7-aminonaphtholsulphonic acid or 1 : 8-aminonaphthol-3 : 6- or 4 - 6-disulphonic acid, and the other A may be the residue of 4-nitraniline, 4-chloraniline, metanilic acid, 3 : 4-dichloraniline-6-sulphonic acid, 2 - aminotoluene - 5 - sulphonic acid, 2 - chloraniline - 5 - sulphonic acid or 6-chloro-4-nitro-2-aminophenol.  The following examples are specified: (1) an aqueous solution containing the dyestuff, 4 : 6-dinitro-2-aminophenol --> (alkaline) [1 : 8-aminonaphthol-3 : 6-disulphonic acid --> 1 : 3-dihydroxybenzene] \sM 4-nitraniline, sodium acetate and ferric chloride is boiled for 1/2 hour and the complex iron compound is salted out; neutralized chrome leather is dyed a fast nigger brown by treating it for 20-30 minutes in an aqueous solution at 60-65 DEG  C. of the product, adding sulphonated neatsfoot oil, continuing the treatment for a further 30 minutes, rinsing and washing; (2) glace leather is dyed various shades of brown by treating it for 2 hours in an aqueous solution at 40-50 DEG C. containing one of the following complex metal compounds, viz. (a) the chromium compound of the dyestuff, 4 : 6-dinitro-2-aminophenol --> (alkaline) 1 : 8-aminonaphthol-3 : 6-disulphonic acid --> 1 : 3-dihydroxybenzene \sM 4-nitro-2-aminophenol-6-sulphonic acid, (b) the iron compound of the same dyestuff, (c) the iron compound of the corresponding dyestuff in which the last component is replaced by 2-chloraniline-5-sulphonic acid, (d) the iron compound of the dyestuff, 4-nitro-2-aminophenol-6-sulphonic acid --> 1 : 8-aminonaphthol-3 : 6-disulphonic acid --> 1 : 3-dihydroxybenzene \sM 4-chloraniline, a suspension of egg yolk is then added and the dyeing is completed with additions of acid and chromium acetate.
Patent GB-659603-A (GB)
Title: Improvements in swing joint for liquid dispensing conduit
IPC: F16L27/08
Filed: 1949-09-06
Abstract: 659,603. Rotary joints. DEHN, S. G. (Wheaton Brass Works). Sept. 6, 1949, No. 23088. [Class 99(i)] [Also in Group XXIX] A compressible seal ring of U-shaped cross-section is interposed between the opposed flanged ends 8, 9 of a pair of reversely curved members 6, 7 which have longitudinallyaligned outer ends and are pivotally connected for relative swinging movement about a transverse axis and is mounted in a carrier ring 10 that has internal recesses 12 for the reception of the flanged ends. A keeper ring 15 is disposed within the seal the flexible sealing lips 14 of which engage, under liquid pressure, the faces of the flanged ends. Releasable means hold the members and seal in operative position and may comprise trunnions. 18, 25 supported in hubs 30, 33 of brackets 29, 32, and keeper nuts 38, 39 screwed into .the hubs to thrust the members together. Member 6 may be fixed so that member 7 and articulated pipes attached thereto are swung into any position (see Group XXIX).
Patent GB-1249155-A (GB)
Title: Improvements in thermodynamic power plant
Inventor: BUDWORTH DAVID DUTTON
IPC: F02C7/08
Filed: 1968-04-04
Abstract: 1,249,155. Gas turbine plant; jet propulsion plant. DAVID BUDWORTH Ltd. July 4, 1969 April 4, 1968, May 15, 1968], No.16363/68 and 23102/68. Headings F1G and F1J. The invention relates to a power plant comprising a gas turbine engine which drives an air compressor, the air from the compressor being passed through a heat exchanger where it is heated by the exhaust gases from the engine, the heated air being passed to a turbine which supplies useful power. In the plant shown, a gas turbine engine 1 drives an air compressor 2 the inlet of which is indicated at 2A and the air is discharged through ducts 2B to the air heaters 4 where it is heated by exhaust gases from the engine 1 discharging through two ducts 3, the exhaust gases discharging from the air heaters through outlets 4A. The heated air discharges from the air heaters through ducts 5 to two hot air turbines 6 which are arranged to drive propellers or ducted fans 7 which provide propulsive thrust or lift to a vehicle in which the plant is mounted. The air discharges from the turbines 6 through outlets 6A.
Patent GB-1321942-A (GB)
Title: Pulse column with piston drive and resilient gas cushion
IPC: B01D11/04
Filed: 1971-04-19
Abstract: 1321942 Liquid pulsating devices STAMICARBON N V 19 April 1971 [5 March 1970] 23126/71 Heading F1P Liquid in a column 2 and U-tube 9 is pulsed by expanding and contracting a gas-filled chamber A in communication through a tube 13 with a gas space 12 above the liquid in the U-tube 9, the amplitude of the pulses being variable by altering the volume of the gas in the space 12. The chamber A is expanded and contracted by a piston 15 reciprocated at a fixed frequency. A gas-filled buffer space 18 is connected to a space B on the opposite side of the piston 15 to  the space A, the spaces A, B being connected through a narrow line 19, or alternatively through a clearance space around the piston 15. A wave damper in the form of a perforated plate 11 may be provided. The volume of the buffer space 18 is equal or greater than the sum of the volumes of the spaces 12, A and the tube 13. Gas can be supplied to the space 12 through a line 22 and be removed through a line 23.
Patent GB-532007-A (GB)
Title: Improved means for supplying air to submerged submarines
IPC: B63G8/40
Filed: 1939-08-11
Abstract: 532,007. Supplying air to sunken submarines. GRAY, F. J. Aug. 11, 1939, No. 23222. [Class 68 (i)] An emergency air supply device for use in submarines comprises a float 4 carrying a flexible air pipe 5 and of such a shape that when it reaches the sea surface it turns from a vertical to a horizontal position thereby opening an air inlet valve 14 at the top of 'the air pipe and connected to the float by a chain. The air pipe terminates at its upper end in a tube 11 pivoted in the float and carrying the air inlet valve. The air pipe is strengthened by cables extending along the pipe and secured at one end to the submarine and at the other end to the pivots of the tube 11. The float is held in a recess in the shell of the submarine by a wedge or cam shaped member 36 on a vertical spindle. When the spindle is turned to release the member 36, the more buoyant end of the float rises, and the float turns about a finger 38 at the otherend and rises to the surface in a vertical position. The air pipe may be wound on a drum in the submarine, and the casing of the air inlet valve may be adapted to be connected to an air pump.
Patent GB-1407772-A (GB)
Title: Internal combustion engine with a catalytic exhaust converter
IPC: F01N3/22
Filed: 1973-05-16
Abstract: 1407772 Purifying I.C. engine exhaust gases NISSAN MOTOR CO LTD 16 May 1973 [31 May 1972] 23255/73 Heading B1W Fuel is supplied to the exhaust pipe 12 upstream of the catalyst converter 13 for reducing nitrogen oxides from a reservoir 18 and air is supplied to the exhaust manifold 11 at a pressure proportional to the square of engine intake air flow by a pump 19. A pump 15 supplies fuel to the reservoir 18 through a check valve 18c and for discharge from the reservoir through a check valve 18e when a bellows 18b is collapsed by a predetermined output pressure of the pump 19 acting in the reservoir through a passage 21. The predetermined air pressure corresponds to heavy load engine operation. The bellows is expanded when the air pressure is below the predetermined pressure. The air pressure may expand the bellows 18b, fuel being supplied to the reservoir externally of the bellows and the air into the bellows, Fig 2 (not shown).
Patent GB-984832-A (GB)
Title: Snap action electrical switches
Inventor: WINDLE IAN PETER
IPC: H01H5/02
Filed: 1962-06-16
Abstract: 984,832. Retractive switches. VIGILANT SWITCHGEAR Ltd. Sept. 13, 1963 [June 16, 1962], No. 23276/62. Heading H2B. A snap-action electrical switch comprises a movable contact 16 carried on a blade 17 secured to a conducting strip 19 and a fixed contact 14 mounted on a further conducting strip 13. The end 20 of the strip 19 is bent upwards and engages in a groove in the top wall 11 of the switch housing 10 and the contacts 14, 16 are each surrounded by a ferro-magnetic member, one of which is permanently magnetized, to bias the contacts into engagement. The contacts are disengaged by a plunger which acts on the blade 17, and to allow over-travel a spring is provided between the strip 19 and the base of the housing. In another embodiment the strip 19 is omitted and the blade 38 is connected to an external electric circuit via a flexible member 41 (Fig. 4). Also two fixed contacts 31, 33 are provided to form a change-over switch. The ferro-magnetic members may be replaced by a pair of springs extending along opposite sides of the blade 17 or 38 and tensioned between laterally projecting ears at each end of the blade so as to provide an over-centre snap action arrangement, a restoring spring being provided to return the plunger to its original position.
Patent GB-798882-A (GB)
Title: Improvements in or relating to thermoelectric cooling units
Inventor: BECKET FREDERICK JOHN
IPC: H01L35/00
Filed: 1955-08-12
Abstract: 798,882. Refrigerating. GENERAL ELECTRIC CO., Ltd. Aug. 8, 1956 [Aug. 12, 1955], No. 23335/55. Class 29 [Also in Group XXXVI] Relates to means for conveying heat to and from the hot and cold junctions respectively of thermoelectric devices using p and n type semiconductors (see Group XXXVI). As shown in Fig. 1, banks of fins 4, 6 are connected to the cold and hot junctions and project into the storage space 5 and a rear flue through which cooling air is circulated by fan 7. As shown in Fig. 6, two devices cool respectively freezer and storage compartments 15, 14, protective members 16 shrouding the banks of fins 4. The internal air may be circulated by fans. The cooling air entering the flue 19 at the bottom flows first over fins 6 of the device for the freezer compartment, this device preferably consisting of two devices in cascade, the hot junctions of one being cooled by the cold junctions of the other. Flue 19 may be automatically closed whenever a fan, if provided, is not running. In a modification, the hot junctions of the freezer compartment device may be located in the storage compartment for cooling. In a further modification, (Fig. 8, not shown), the freezer compartment is a metal casing within the storage compartment and is cooled by a device, the storage compartment being cooled by heat conduction through the casing. As shown in Fig. 10, the thermoelectric device 8 is heated and cooled by evaporating-condensing systems 25, 24 and 26, 27 respectively. Alternatively heat conveying liquid can be circulated by pumps through these systems or system 25, 24 can convey heat to the system while the hot junctions are cooled by fins in the rear flue. Control. The current is supplied to the device through a transformer and rectifier and the former has two output tappings selected by a thermal element in the storage space so that the lower voltage is applied when the temperature has been reduced to the desired level. Alternatively, the thermal element can switch in and out a dropping resistance or choke in the supply. Defrosting is effected by switching off all current or by reversing the direction of current so that heat is supplied to the storage space. The applied voltage can be varied in accordance with ambient temperature.
Patent GB-240181-A (GB)
Title: Improvements in automobile lamps
IPC: F21V17/00
Filed: 1925-09-19
Abstract: 240,181. Christiansen, G. O. J. P. Sept. 20, 1924, [Convention date]. Vehicle lamps.-An egg-shaped motor-vehicle. lamp is provided with a downwardly inclined front opening b, a reflector c having its axis downwardly inclined, e.g. at an angle of 11‹, and a lamb bulb e with its axis inclined at a lesser angle, e.g. at an angle of 6‹, and intersecting the front glass just below its upper edge.
Patent GB-1013347-A (GB)
Title: Improvements in or relating to nickel-base alloys
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C19/05
Filed: 1961-06-29
Abstract: The alloys of the parent Specification are modified in one or more of the following ways: (1) niobium is omitted, (2) the titanium content of the alloys of the parent Specification is increased in the range over 5% to 7%, (3) zirconium up to 0.5% is specified as a deoxidizer, and (4) manganese and silicon are added to the alloys of the parent in the range 0-0.5%.
Patent GB-893252-A (GB)
Title: 5-polysubstituted phenoxymethyl-2-oxazolidones
Inventor: LUNSFORD CARL D
IPC: C07D263/24
Filed: 1959-07-08
Abstract: The invention comprises compounds of the general formula <FORM:0893252/IV (b)/1> (wherein R represents hydrogen or a hydrocarbon radical of up to 8 carbon atoms, and R1, R2 and R3 represent halogen atoms or C1-8 alkoxy or alkyl radicals, or one but not both of R2 and R3 may alternatively represent hydrogen), and the preparation thereof by (a) (when R is hydrogen) reacting an appropriately substituted 3-phenoxy-1,3-propanediol, 3-phenoxy-1-halo-2-propanol or 3-phenoxy-2-hydroxy-1-propyl carbamate with urea, or (b) (when R is a hydrocarbon radical) by reacting an appropriately substituted 3-phenoxy - 1 - (N - substituted - amino) - 2 - propanol with phosgene or a dialkyl carbonate in the presence of a basic catalyst.  The products are useful as anticonvulsant, relaxant and tranquillizing agents.  Polysubstituted 3 - phenoxy - 1 - (N -substituted-amino)-2-propanols are prepared by reacting correspondingly substituted 3-phenoxy-1-chloro-2-propanols with primary amines.
Patent GB-644135-A (GB)
Title: Improvements in or relating to processes employing fluidized powdered catalyst or contact material
IPC: C10G11/18
Filed: 1947-08-26
Abstract: The process of the parent Specification is modified in that the size distribution of the particles of powdered material in the reaction zone is maintained within the following limits: .Micron diameter..Per cent .0-20.less than 25 .20-80.30-85 .above 80, but still. .finely divided.less than 45
Patent GB-1201118-A (GB)
Title: Improvements in or relating to the digital indication of angle, particularly phase angle
Inventor: O'BRIEN WILLIAM JOSEPH
IPC: G01R25/08
Filed: 1968-05-20
Abstract: 1,201,118. Analogue/digital converters. DECCA Ltd. 11 March, 1969 [20 May, 1968], No. 23835/68. Heading G4H. In an angle digitizer of the type in which a gate 23 is opened at a time determined by a reference signal and closed by a signal the time of which is dependent on the unknown angle, clock pulses being counted during the time interval between these signals, signals representing sin # and cos #, where # is for example either the angle through which a shaft has rotated or the phase difference between two signals, are fed via semi-conductor switches 11, 12, receiving modulating signals in phase quadrature, a mixer 17, tuner 18 and squaring circuit 19 to a differentiating amplifier 20 the output pulses from which control the closing of the gate 23. The gate is opened, after an interrogate signal 27 has enabled a switch 22 and reset counter 25, by the next reference signal which is derived from one of the modulating signals. The count may be fed to an indicator or computor.
Patent GB-817786-A (GB)
Title: Method of refining phosphorus-containing pig iron
IPC: C21C5/32
Filed: 1957-07-29
Abstract: A method of refining molten phosphorus-containing pig iron with oxygen in a rotating basic lined furnace comprises refining under a limey slag until the carbon content is at least 0.5 per cent while rotating the furnace at high speed, removing the phosphorus-rich, low-iron slag, adding new slag-forming materials and continuing the blow until the carbon has attained the required value.  The second slag may be retained in the furnace to form part of the first slag of the following heat when its high iron content will be reduced.  The first slag may remove three-quarters of the phosphorus present in the pig iron.  Thus the second slag may be small in bulk.  After the first slag has been removed, iron ore or scrap may be added along with the new slag-forming materials.  Specification 677,349 is referred to.
Patent GB-409968-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: B60G15/04
Filed: 1933-08-29
Abstract: 409,968. Ordnance recoil apparatus. BUGATTI, E., Molsheim, Bas-Rhin, France. Aug. 29, 1933, No. 23942. Convention date, Aug. 30, 1932. [Class 92 (i).] A shock-absorber for braking the recoil of guns comprises telescoping cylinders a, b enclosing springs c which act through a movable plate e on a rubber block d or blocks supported on a fixed member h, compression of the springs causing the rubber to expand radially so as to force a split cylindrical friction member f into contact with the cylinder a and thus brake its movement. The member f slides between the support h and cylinder a.
Patent GB-897771-A (GB)
Title: Resilient torque transmitting couplings and methods for their manufacture
IPC: F16D3/76
Filed: 1958-07-25
Abstract: 897,771. Making universal Joints. CULL, W., and RZEPPA Ltd. July 27, 1959 [July 25, 1958], No. 24022/58. Class 83 (2). [Also in Group XXIV] A universal joint comprising a rubber element 2 between inner and outer sleeves 1, 5 is made by bonding the rubber element 2 to the inner sleeve 1 and passed through a tapered die 4 into the outer sleeve 5 which has grooves 5a formed therein by rolling a ball 6 therealong.
Patent GB-946185-A (GB)
Title: Improvements in and relating to turbines
IPC: F03B3/18
Filed: 1962-06-22
Abstract: 946,185. Hydraulic turbines. KARLSTADS MEKANISKA WERKSTAD A.B. June 22, 1962 [June 26, 1961], No. 24025/62. Heading F1T. In an hydraulic turbine, or turbine which may be used as a pump, adjustable guide vanes are mounted on trunnions and a locking device therefore is provided in which the trunnion or a casing enclosing the trunnion has a cavity expanded hydraulically to effect frictional engagement. A Francis type turbine, has fixed guide vanes 15 and adjustable vanes 17 mounted on trunnions 27 enclosed in a casing 29. An annular cavity 37 has a thin wall 35 and the cavity is supplied with oil under pressure through a pipe 51 to lock the vane in position. In an alternative embodiment, the trunnion itself has a thin walled hollow portion to which oil is supplied under pressure (Fig. 8, not shown).
Patent GB-439993-A (GB)
Title: A new and improved tile
IPC: C04B41/52
Filed: 1935-06-26
Abstract: 439,993. Facing tiles. LEVY, M., 68, Palatine Road, West Didsbury, Manchester. June 26, 1935, No. 24140/34. [Class 87 (i)] Tiles made of a cement-sand mixture are first made non-porous by dipping them in a polymerized linseed oil combined with fossil resin gum and thinned with turpentine; they are then dried naturally for a day, and the front is sprayed with a pigmented oil-modified synthetic resin as a filler. After stoving for 30 minutes at 250‹ F. and cooling, the surface is flatted and sprayed with an undercoat of heatconvertible synthetic resin in a semi-condensation stage and containing a pigment, and the tiles again stoved at 250‹ F. for 30 minutes. A colour composition similar to the undercoat is next applied, dried for 15 minutes, and the tiles again stoved and, when cool, are coated with clear lacquer, preferably a heat convertible synthetic resin lacquer. The tiles are again stoved, cooled, and buffed.
Patent GB-259222-A (GB)
Title: Improvements relating to change speed gears for motor vehicles
IPC: F16H57/04
Filed: 1926-09-30
Abstract: 259,222. Fiat Soc. Anon. Sept. 30, 1925, [Convention date]. Facilitating changing speed. -Lubricant drawn from a sump 2a in the change-speed gear box 1 of a motor-vehicle through a pipe 3 is forced by a pump 4 driven by the lay shaft 5 into an axial conduit 5a therein, whence it passes to the teeth of the wheels 9 on the shaft 5 through radial pas. sages 7. A needle valve 13 extending through the bore 5<a> is normally pressed outwards by a spring 14, but, when the clutch is disengaged, the valve is forced inwards by a lever 15, 16 to throttle the pump delivery, whereby a braking effect is exerted on the lay shaft to facilitate gear changing.
Patent GB-1209174-A (GB)
Title: Sewage treatment apparatus for toilets
Inventor: CARLSON GORDON RICHARD
IPC: C02F1/68
Filed: 1967-10-31
Abstract: 1,209,174. Treating toilet waste. G. R. CARLSON. 31 Oct., 1967 [10 Nov., 1966], No. 24282/70. Divided out of 1,209,173. Heading C1C. A treatment unit for toilet effluent on ships &c. has an inlet pipe 56 which conducts the effluent through a mascerator unit 41 which controls the size of particles of solid matter which pass to holding zone 24. The liquid overflows into treatment chamber 25 and passes to a further holding zone 30 for final discharge at 47.
Patent GB-237545-A (GB)
Title: Improvements in railway vehicle automatic couplings
IPC: B61G3/16
Filed: 1924-10-14
Abstract: 237,545. National Malleable & Steel Castings Co., (Assignees of Willison, J.). July 24, 1924, [Convention date]. Couplings, automatic.-A car coupler of the vertical plane type, of the kind described in Specifications 9622/12 and 174,946, has a lock-actuating device journaled in the cavity between the jaws of the coupler, and is arranged, on movement about its axis, to retract the lock into unlocked position, but normally serves to limit the movement of the lock during coupling. The lock 9, Figs. 1 and 3, slides upwardly and rearwardly in a groove 11 in the bottom of a cavity 10 in the coupler head 2 and is provided on one side with a projection 12 which bears against an inwardly projecting web 13 of the coupler to maintain the lock in the vertical plane when interlocking with the lock of the opposing coupler; and on the other side with a projection 16 which is engaged by one arm 19 of a U-shaped lever 17 pivoted on a bolt 18, the other arm 20 being connected to a lock-operating rod 31. A curved extension 29 is provided on the lock adapted to engage the bolt 18 when the lock has moved forwardly to the extent necessary for engagement with the lock of the opposing coupler. When uncoupling, the rod 31 is pulled by hand to rotate the U-shaped lever 17 in an anticlockwise direction which causes the arm 19 to engage the projection 16 on the lock to move it rearwardly clear of the lock of the opposing coupler. If the rod 31 is moved still further and then released the projection 12 moves beyond the confines of the wall 13 where the lock tilts and an inclined surface 14 on the projeotion 12 engages a corresponding inclined surface 15 on the end of the wall 13 to maintain the lock in the " lock-set " position, where re-engagement cannot occur as the face of the lock 9 lies across the face of the opposing lock. In the " ready to couple " position of the coupler the lock 9 is in the extended position, Fig. 1, and in order to prevent the lock being driven further back into the cavity 10 than is necessary in coupling, i.e. beyond the confines of the wall 13, a shoulder 25 on the lock is adapted to contact with the forward face 24 of the lever arm 9.