baber/WOPTO huggingface dataset:
Patent GB-725000-A (GB)
Title: Improvements in or relating to method for separating carbon dioxide and hydrogen sulphide from gas mixtures
IPC: B01D53/52
Filed: 1953-03-11
Abstract: Carbon dioxide and hydrogen sulphide are removed from gas mixtures, e.g. natural gas, synthesis gases, or water gas used in the production of hydrogen, by an aqueous solution of alkaline reagent, particularly alkali metal carbonates or phosphates, or mono-or diethanolamine, introduced at about atmospheric boiling temperature into the absorption zone maintained under superatmospheric pressure, some of the <PICT:0725000/III/1> gases being flashed off from the fouled solution in a regeneration zone maintained at a reduced pressure, the solution then being subjected to boiling and steam stripping to remove further quantities before return without substantial cooling to the absorption zone.  Gases scrubbed in an absorber 2 under at least 50 lbs per sq. in. and preferably at least 100, escape through a condenser 30, fouled solution passing through a pressure let-down valve 8 to a flashing chamber 7 where the partly regenerated solution is led to the top of a stripping column 11 for countercurrent treatment with steam evolved from the boiling liquid heated by a steam coil 13 or introduced directly.  Gaseous effluent leaves by a line 17 steam condensate being refluxed back to the column.  Desorbed gas and steam from the flashing chamber is preferably admitted into the column at an intermediate level through a line 9.  Regenerated solution is pumped back to the absorber preferably without any deliberate cooling or in any case by more than 20 DEG F.  After the bulk of carbon dioxide &c. has been removed, residual quantities may be abstracted by a conventional second stage washing or in a modification, two stage absorption and regeneration are effected in the same apparatus by withdrawing the bulk of solution from the stripping column a little above the bottom and returning it to the absorber a little below the top. The relatively small quantity of more completely regenerated solution is introduced at the top of the absorber.  Pressure reduction in the regeneration zone may be effected in stages, the final pressure preferably being atmospheric or 5-30 lbs. per sq. in. above.  Both flashing and stripping operations may be carried out in the same vessel. Concentrated potassium carbonate solution is preferred as the absorbent as effecting a relatively large removal of carbon dioxide per pound of steam consumed, and in p  examples 5-6 times as much carbon dioxide are removed per pound of steam by hot solution as by cold.
Patent GB-159831-A (GB)
Title: Improvements in ships' sidelights and the like
IPC: B63B19/00
Filed: 1921-03-02
Abstract: 159,831. Soc. Anon. des Ateliers et Chantiers de la Loire, and Laupretre, C. March 5, 1920, [Convention date]. Addition to 142,130. Cabin and deck lights.-Comprises detail improvements in ships' sidelights described in the parent Specification, and consists in (1) engaging the trunnions of the glass-holder ring with the forked ends of a half ring hinged to the frame and providing a releasing device for the trunnions when the ring is carried down on its hinge against the frame, (2) placing the operating handle on the ring at an angle to the axes of the trunnion pins and ring axis, (3) in attaching an outer cover to the glass holder ring by helical inclined locking surfaces, and (4 ) in using annular conical metal to metal bearing surfaces between the ring and both the frame and outer cover. The top and bottom trunnions b<3>, Figs. 2, 3, pass through a lug b<8> on the glass holder ring b and a lug c<5> on the frame a, and are moved together by their engagement with slots l<1> at the ends of a half ring l hinged at l<2> on the frame. A slot l<4> in the ring b<1> allows the trunnions to move therein when the screw threads b<1> on the ring b are screwed into the segmental threads c' on the frame. The joint between the frame a and ring b is directly metal to metal and conical, the virtual apex of the cone being inboard. In a modification, the trunnions b<3> of the ring b are held in the slots when the ring is screwed into the frame by springs or spring pressed levers. An outer cover is adapted to be fixed to the ring by a bayonet type joint, the engaging surfaces being inclined,
Patent GB-382520-A (GB)
Title: Improvements relating to electron discharge tubes
IPC: H01J9/385
Filed: 1932-03-08
Abstract: 382,520. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 8, 1932, No. 6944. Convention date, March 24, 1931. [Class 39 (i).] Occluded gas is removed from a cathode bv bombardment by means of electrons emitted from a substance applied to another electrode such as the anode or grid. Barium azide may be attached to the inside of the anode which is heated by a high frequency field during evacuation so as to evolve nitrogen and leave barium. A positive potential is applied to the cathode and the anode is heated so that electrons are emitted from the barium. After the cathode has been freed from gas, the anode may be raised to a higher temperature so that barium is deposited on the cathode to form, after oxidation, an electron emitting coating. Specification 245,146, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-1172732-A (GB)
Title: Monostable Circuits
Inventor: LUETZE W
IPC: H03K3/284
Filed: 1967-02-14
Abstract: 1,172,732. Monostable circuits. INTERNATIONAL BUSINESS MACHINES CORP. 14 Feb., 1967 [10 March, 1966], No. 6981/67. Heading H3T. A monostable circuit comprises two amplifiers in feedback configuration and a timing capacitor which charges exponentially from a first voltage level towards a second level, the two voltage levels being derived from the same voltage source and being symmetrical about an intermediate voltage level determined by a current transfer long tail pair switch. As shown, a negative pulse at E to a diode OR circuit D1, D2 cuts off a saturated transistor T 1  and switches on T 3 . This, through C 1 , switches off a lightly conducting transistor T 4  of a current switching comparator T 4 , T 5  causing T 6  to conduct and saturate T 7 . The output of T 7  is fed back to the OR gate to maintain this state while C 1  charges through R 5  and Rc. When the base potential of T 4  reaches earth the transfer switch T 4  and T 5  restores, T 4  thus conducts cutting off T 7  and removing the feedback to the OR gate so that the circuit returns to its initial state. D 4  now conducts and maintains the voltage at the base of T 4  close to earth due to feedback from T 6 . During the unstable state the capacitor charges towards the same voltage as is provided the capacitor charge and as the termination of the unstable period occurs midway between the voltage levels the timing is less dependent upon the voltage levels. A capacitor C 2  maintains the charging voltage constant during the unstable period.
Patent GB-207453-A (GB)
Title: Improvements in automatic stapling, label tacking machines and the like
IPC: B25C5/16
Filed: 1923-03-10
Abstract: 207,453. Ford, T., and Stevenson & Sons, Ltd., H. March 10, 1923. Stapling, hand tools for.-In a stapling or label tacking machine of the type in which a cam on the driver operates a staple strip feed mechanism, this mechanism is carried on a slide bar 14 movable in a chamber normally closed by a driver 7, which, when removed, allows the bar 14 to slide out with the entire feed mechanism. The bar 14, which is operated by a cam 23 on the driver, is provided with two pins 15 mounted to slide in sockets in the body of the machine, and normally pressed forwards by springs. A feed fork 18 is pivoted to the bar 22 and is pressed downwards to engage a staple strip 12 by a spring 20, one end 21 of which projects between and beyond the ends of the fork 18, to enable the foremost staple of the strip to be held and driven.
Patent GB-316899-A (GB)
Title: Improvements in or relating to devices for the mechanical transmission of power
IPC: F16D41/00
Filed: 1928-03-06
Abstract: 316,899. Lavaud, D. S. de. March 6, 1928. Differential or balance gearing of the kind comprising two aligned half-axles 1, 2 carrying two resiliently-connected ball or roller cages 11 forming part of free-wheel clutches between the half-axles and a common driving crown 5, as described in Specification 311,008, comprises also a member such as a disc 3 or ring of balls interposed between the juxtaposed ends of the halfaxles, or between sleeves thereon. A form is described in which there is a ring of balls between the driven members 4 of the two clutches, the propping rollers of which are shown at 10.
Patent GB-894979-A (GB)
Title: Frequency converter
Inventor: HARVEY DENNIS EDWIN ALFRED
IPC: H03D7/12
Filed: 1960-02-29
Abstract: 894,979. Transistor frequency-changing circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 14, 1961 [Feb. 29, 1960], No. 7090/60. Class 40(6). A self-oscillating transistor mixer circuit is provided with positive feedback of the intermediate-frequency output of the circuit to its input to reduce the degeneration introduced by the capacitor C2 which necessarily has a high impedance at intermediate frequencies since it must be small enough to prevent squegging. The feedback is provided by capacitive voltage divider comprising capacitors C4. C5
Patent GB-1044984-A (GB)
Title: Input steering circuit for binary circuit
IPC: H03K3/288
Filed: 1964-02-20
Abstract: 1,044,984. Transistor bi-stable circuits. PACIFIC INDUSTRIES Inc. Feb. 20, 1964 [Feb. 27, 1963], No. 7095/64. Heading H3T. [Also in Division G4] In a bi-stable circuit input trigger pulses at 30 are fed via capacitors 31, 63 to steering and amplifying circuits each comprising a shunt diode 54, 60, one or other of which is selectively reverse biased by the output voltage of the bistable circuit. As described, transistors 55, 56 are reciprocally coupled so as to form a conventional bi-stable circuit. Assuming transistor 55 to be off, diode 54 will be reverse biased so that the leading edge of negative-going trigger pulses at 30 will be passed via differentiating capacitors 31, 32, inductor 33 and transistor 22 so as to reverse the conductive state of transistors 55, 56. Diode 60 will be turned on by the negative going edge of the trigger pulse at 30 so as to prevent the pulse reaching transistor 61. A low value inductor 33 may be included to delay the transmission between point 34 and transistor 22, thus providing additional charging time for capacitor 31. The circuit may be triggered by sine waves having frequencies between 30 and 230 Mc/s. Counting circuits.-The carry terminal 19 may be connected to the input terminal 30 of a subsequent stage in a counter.
Patent GB-550417-A (GB)
Title: Improvements in hydraulic apparatus
IPC: F15B15/14
Filed: 1941-06-05
Abstract: 550,417. Dashpots. SMITH & SONS, (MOTOR ACCESSORIES), Ltd., S., and MEREDITH, F. W. June 5, 1941. No. 7132. [Class 108 (iii)] [Also in Group XXVI] A piston rod, &c. 11 passes through the wall of a hydraulic pressure chamber fitted with a high-pressure sealing bearing 15 enclosed by an outer chamber 20 connected with a header tank 24 containing operating liquid which keeps the seal flooded. The chamber has a simple lowpressure packing 16. The apparatus shown is a dashpot comprising a piston 10 having a peripheral spiral leak 29; its rods is hollow and surrounds a rod 35 of greater expansibility having a terminal plug 30 controlling leak passages to either side of the piston.
Patent GB-851463-A (GB)
Title: Vacuum cleaner assembly
IPC: A47L9/28
Filed: 1958-11-10
Abstract: 851,463. Suction cleaners. LEWYT CORPORATION. Nov. 10, 1958 [Dec. 12, 1957 ; July 23, 1958], No. 7243/60. Divided out of 851,462. Drawings to Specification. Class 8(1). The subject-matter of this Specification is identical with that described with reference to Figs. 1 to 10 and 14 to 17 of Specification 851,462, but the claims differ. Specification 760,275 also is referred to.
Patent GB-164157-A (GB)
Title: Improvements in drying apparatus
IPC: F26B21/00
Filed: 1920-03-10
Abstract: 164,157. Zimmermann, O., and Weyel, H. March 10, 1920. Air and gases, supplying, circulating, and exhausting. - Apparatus for drying materials and particularly agricultural products by means of hot air is provided in which variations in the direction of the air currents may be conveniently carried out. As shown, the apparatus comprises a chamber divided by a partition 15 and a perforated drying floor into compartments 1 - - 4. The lower compartments communicate through dampers 11 - - 14 with the underground flues 7, 10, through which the air is supplied and exhausted from the chamber. The upper compartments communicate through a rotary valve 16 with one another, and through dampers 18, 19, with the chimney 17. The chambers may be cooled by atmospheric air admitted through the flues 20. By manipulating the dampers and the rotary valve, the hot air may be circulated upwards through one chamber and downwards through the other or vice versa and thence to the exhaust flue or upwards through one chamber directly to the chimney.
Patent GB-567398-A (GB)
Title: Improvements in the degreasing of surfaces
IPC: C23G5/02
Filed: 1943-05-07
Abstract: 567,398. Degreasing surfaces. ATLAS PRESERVATIVE CO., Ltd., SOWARD, S. C., and SMITH, F. K. May 7, 1943, No. 7278. [Class 91] Surfaces are degreased by means of atomized solvent using compressed air to effect the atomization. The compressed air may be hot or cold ; in the latter case, the solvent may be heated prior to, during or after atomization. Steam may be used with the compressed air. The latter alone may be used to finally dry the surfaces.
Patent GB-817498-A (GB)
Title: Improvements relating to beating devices for opening bales of fibres
IPC: D01G9/04
Filed: 1957-03-05
Abstract: 817,498. Bale opening machines. RIETER & CIE A. G., J. J. March 5, 1957 [March 6, 1956], No. 7287/57. Class 120(1) A beating device for opening bales of fibres comprises means 10, Fig. 1, for movably carrying bales, a rotatable drive shaft 2 spaced from and parallel to means 10 and transverse to the direction 16 of bale movement, and beating elements 9 supported directly or indirectly by shaft 2 and capable of deflection independently of one another. As shown, means 10 consists of a grate. Fibres are detached by elements 9 which are rigid and are swing- ably carried on rods 5, 6 rigidly connected by flanges 3, 4 to drive shaft 2. Elements 9 extend radially from shaft 2 a distance greater than the spacing a of the bale from the shaft, but are diverted from the radial position on hitting the bale. Elements 9 may be slotted to avoid undesirable air currents, or may be twisted at their ends so as to produce a current parallel to rod 6 for removing loosened fibre in that direction. A modified beater element 14, Fig. 3, is carried by a spring 13 connected to rod 5 or 6; in a further modification, Fig. 4, the beater element 15 is made of resilient material. When using the beater elements of Figs. 3 or 4, members 3, 4, 5 and 6 may be omitted, the beater elements being mounted directly on the drive shaft 2.
Patent GB-393712-A (GB)
Title: Process of manufacturing crepes with threads of cellulose acetate artificial silk
Filed: 1932-03-11
Abstract: In the treatment of cellulose acetate threads for the production of crepe fabrics, the threads are subjected to the action of a swelling agent which is then removed and the threads are subjected to a high degree of twisting of the order of 2800-3000 turns per metre.  The threads are woven into fabrics which are subsequently subjected to a washing or scouring treatment to obtain crepe effects.  If desired, a colloid, which on drying leaves an elastic coating on the thread, may be incorporated with the swelling agent.  The treatment with swelling agent may be such that after drying the thread shows a shrinkage of 10-15 per cent.  As swelling agents there may be used alcohols, organic or inorganic acids, benzine, or aqueous solutions of sulphocyanides.  After treatment the swelling agent is removed by washing or, if volatile, by drying.  Lubricants may be added to the swelling bath.  In an example cellulose acetate threads are immersed in aqueous ethyl alcohol containing gelatine or a vegetable gum.  The threads are dried and highly twisted.  The threads are used for the weft of a fabric with a cellulose acetate warp, threads of both right- and left-handed twist being employed. After scouring and dyeing a fabric similar to crepe-de-Chine is obtained.  In another example a solution of nitric acid is used as the swelling agent and is removed by washing before the threads are dried.  In another example, the swelling agent is a mixture of chloroform and carbon tetrachloride which is removed by drying in a current of air.
Patent GB-538932-A (GB)
Title: Improvements in blinds, shutters and the like
IPC: E06B9/262
Filed: 1940-04-24
Abstract: 538,932. Window blinds and shutters. BROWNBILL, E. M., and 'COLE, E. G. April 24, 1940, Nos.. 7374 and 8826. [Class 20 (iii)] A blind or shutter comprises upper and lower. sections 8, 9, Fig. 2, which are so interconnected that when the upper one is lowered the lower one is raised and which in the drawn position overlap to form a light trap and at the same time to allow air to pass for ventilation. Blind sections consisting of collapsable material are interconnected and actuated by cords 12 including , tension springs 14 and passing around pulleys 13. Roller blind sections are interconnected by cords secured to the ends of the cross bar of each section and passing around the roller of the other section. In a modification, blind sections 23, 24, Fig. 6, secured at the top and bottom respectively are mounted on rollers 232 engaging spur wheels 234 which are rotatably secured to slides 235 and which engage fixed racks 236, so that the blind rollers are rotated by moving the slides up or down by the rotation of a gear wheel 26. Upper and lower slat sections 15, 16, Fig. 4, of a shutter are moved up and down by slides 19, and the top and. bottom slats of the respective sections engage inclined grooves 17 directing the slats into a horizontal position as the shutter is closed. Specification 26589/96, [Class 20], is referred to.
Patent GB-613059-A (GB)
Title: Improvements in and relating to transformers
IPC: H01F30/02
Filed: 1946-03-11
Abstract: 613,059. Transformers. AKT.-GES. BROWN, BOVERI, & CIE. March 11, 1946; No. 7542. Convention date, March 10, 1945. [Class 38 (ii)] The single-phase auto-transformer forming the subject-matter of Specification 613,045 is modified by arranging that the high and low voltage parts of the winding are at least twice linked by the leakage flux and possess such a width in the direction transverse to that of the leakage flux that the reactance voltage which is produced is sufficiently large for adequate mechanical resistance of the windings against short-circuit stresses. Fig. 1 shows a concentric arrangement of cylindrical windings wherein the low voltage part of the winding is subdivided into two parts d1, d2 respectively located outside and inside the high voltage, cylindrical portion c, the tertiary winding e being located nearest to the core a. A lead-in connection U is provided for the winding c, and a lead u1 from the sections d1, d2. Leads x1, x2 are taken from the tertiary winding e.
Patent GB-267965-A (GB)
Title: Distributing container for slender articles of elongated shape
IPC: A47F1/06
Filed: 1927-03-18
Abstract: 267,965. Robergel, G. March 22, 1926, [Convention date]. Contents, delivering.-In a distributing receptacle for needles, pins and like elongated articles, of the type comprising a magazine a having its bottom c<1> sloping towards a passage wherein there slides an ejecting rod g comprising at its top a seating for the end of one of the articles A, the rod g is mounted so as to be able to yield elastically when undue pressure is imposed upon it. To this end the rod passes through a false bottom f secured within an outer casing d and is secured to a piston h which is supported from a cap k forming the end of the casing d by a weak spring i. The magazine a is normally held retracted within the casing d by a spring e. The rod g is preferably in the form of a capillary tube.
Patent GB-589705-A (GB)
Title: Apparatus for splitting logs
IPC: B27L7/00
Filed: 1945-03-26
Abstract: 589,705. Apparatus for splitting logs. BARBER, M. FOUNTAIN-. March 26, 1945, No. 7625. [Class 145 (i)] An apparatus for splitting logs, to be mounted directly on to the log, consists of a pressurefluid-actuated wedge-shaped splitter carried by a supporting frame. Two side plates 1 bridged at the top 20 have mounted between them a depending leg 3 and a hydraulic cylinder 4 which contains a ram 5 to which is attached a metal wedge 6. Pressure fluid is supplied from a tank 10 through the pipe 13 by a handoperated pump 14 and thence to a handoperated control valve 9 connected to the ends of the cylinder 4 through the pipes 7 and 8. Fluid is returned to the tank by pipe 19. The apparatus is held on the log 23 by means of a chain 22 attached to opposite sides of the bridge 20.
Patent GB-290405-A (GB)
Title: Improvements in or relating to apparatus for moulding and vulcanising pneumatic tyre covers and the like
IPC: B29C33/20
Filed: 1927-03-19
Abstract: 290,405. Dunlop Rubber Co., Ltd., Willshaw, H., Norcross, T., and Broadbent, F. G. March 19, 1927. Mould-opening devices; moulding wheel tyres.-Final closing with pressure and initial opening of a tyrevulcanizing mould is effected by eccentric, crank or toggle mechanism which may also simultaneously control the fluid pressure supply to the interior of the tyre. Fig. 3 shows a double mould with outer chests 5, 6 of different sizes hinged at 7, 8 to a central chest 1. The outer chests are closed by handles 5a, and hook meunbers 9 pivoted to each outer chest are swung round to engage loosely with a projection 11. The pivot 13 of each member 9 has an eccentric extension 12 which when rotated about its own axis by an arm 12a causes the pivot 13 also to rotate eccentrically about the same axis and thus exert pressure between the hinged and fixed chests. The arm 12a carries an extension 22 with a pin 23 co-operating with a fork 20 on the valve-operating key 16, Figs. 5 and 6. When the arm 12<a> is swung round to close the mould, pin 23 engages with fork 20 and rotates key 16 to the position shown in Fig. 5 in which the valve is open and the fork 20 is held by a detent 24. Before the mould can be opened, the key 16 must be depressed manually against the action of spring 18, this operation causing the exhaust of pressure from the product and the closure of the valve. Fig. 9 shows a toggle arrangement comprising a girder-like member 39 with pins 40 engaging above and below a lip 41 on the hinged chest, the member 39 being pivoted to an operating lever 38 which is in turn pivoted to the fixed chest. The lever 38 may have two operating arms, one 38a of which is telescopic and is adapted for foot actuation. In another arrangement, similar to that shown in Fig. 3 but with the hook member mounted on the fixed chest, pressure is applied by a crank member operated through a system of gearing. Specification 272,992 is referred to.