baber/WOPTO huggingface dataset:
Patent GB-715180-A (GB)
Title: Improvements in or relating to recovery of free sulfur from sour hydrocarbon gases
IPC: C01B17/04
Filed: 1952-08-18
Abstract: <PICT:0715180/III/1> Elemental sulphur is recovered from a gaseous hydrocarbon stream containing hydrogen sulphide by diverting about one-third of the stream, removing from this diverted stream the hydrogen sulphide content, which is reacted with oxygen or air to produce sulphur dioxide, mixing the sulphur dioxide thus formed with the undiverted hydrogen sulphide-containing stream and allowing the mixture to react to produce sulphur which is separated.  As shown in the Figure, sour hydrocarbon gas, preferably containing at least 6 per cent. of hydrogen sulphide enters the system at pipe 2, two thirds being passed through pipe 4 and the remaining third being diverted to a scrubber 6 where it meets a hydrogen sulphide absorbent such as an alkylol amine solution.  The hydrogen sulphide-free gas is drawn off at 8 and the rich alkylolamine solution passes through line 10 and heat exchanger 12 to a regenerator 14, where the hydrogen sulphide is desorbed by the action of vapours entering at 20 from reboiler 18 to which the lean alkylolamine solution is passed through line 16.  Regenerated absorbent solution returns to the absorber 6 by line 22 having been cooled to the gas inlet temperature (100 DEG  F.) by cooler 24. The hydrogen sulphide from regenerator 14 is chilled at 28 and after removing condensate in 30, passes by pipe 34 to a furnace 40 in admixture with air from 36.  The mixture is burned at 1900 DEG F. and after cooling to 1000 DEG F. rejoins through pipe 42, the undiverted original hydrocarbon stream from 4.  The mixture enters the converter 44 packed for example with bauxite at 450 DEG F. and leaves at 600 DEG F. to pass a condenser 48 from which sulphur is removed at 50 at 350 DEG F., then to a smaller converter 56 and a further condenser 60 from which liquid sulphur at 300 DEG F. is withdrawn at 62.  The uncondensed gases containing hydrocarbons and inerts leave through pipe 64 and may be joined with purified hydrocarbon from line 8.  The tail gas in line 64 may be sent through a further converter system 74. 76 where further sulphur is separated, and thence through pipe 80 to join the inlet stream to the absorber 6.  The gas leaving the furnace 42, consisting largely of sulphur dioxide and nitrogen may if desired be by-passed at 41 to an absorption desorption system 43 whereby nitrogen is separated and vented; pure sulphur dioxide is then fed through line 45 to the converter 44.
Patent GB-207241-A (GB)
Abstract: 207,241. Godber, B., and Abbott, W. H. Aug. 19, 1922. Scoring and marking apparatus; time checks for billiards. - Players' scoring knobs on the spindles 35, 45 are connected by chain- and-sprocket drives to scoring dials at 43, 50 when a lever 7, pivoted at 7<b>, is rocked by the weight of a coin received in a bucket 6 at one end of the lever, the driving- trains being completed by coupling- pinions on a cpindle 52 at the end of an arm 51 rigid with the lever 7. When the device is at rest, a brake-arm 19 on the lever 7 engages with the hair-spring rocking wheel 20 of a clock-mechanism 14, and a curved blade 8 on the lever engages in one of two notches 9 diametrically arranged in a disc 10, Fig. 4, which is connected by a chain-drive 11, 12, 13 with the clockwork. A lever 17, one arm 17<b> of which forms the bottom of the coin-bucket 6, is pivoted at 18 to the lever 7, and its other arm 17<a> engages with one of two pins 16 projecting from a disc 15 which-is also driven by the train 11 - - 13. When the lever 7 is tilted by a coin, the clockwork is freed from the arm 19, the blade 8 releases the disc 10, and the scoring trains are coupled up. If electric light is provided, a finger 23 on the lever operates a switch 21, 22 in the lamp circuit. As soon as the disc 15 has been revolved sufficiently by the clockwork to move the pin 16 away from the arm 17<a> of the lever 17, that lever is freed and allows the coin to fall out of the bucket 6. The lever 7, however, is prevented from rising by the blade 8, which now beans upon the periphery of the disc 10, until, at the expiration of a predetermined time, the second notch in the disc permits the lever 7 to rise and stop the clock and disconnect the scoring apparatus. A gong 30 is bounded at the same time and the lamps switched off. The number of games played is recorded by a counter 31 driven by the clockwork 14. Specifications 14932/92 and 22775/08, [both in Class 27, Coinfreed apparatus &c.] ; 155,963, and 190,811 are referred to.
Patent GB-1460503-A (GB)
Title: Spirodipyrans and chromogenic materials for copying processes
IPC: C07D493/10
Filed: 1974-05-10
Abstract: 1460503 Spirodipyran compounds BASF AG 10 May 1974 [11 May 1973] 20727/74 Heading C4P The invention comprises spirodipyrans of the general formula wherein A is a benzene or naphthalene nucleus optionally substituted by chlorine, bromine, alkoxy or carboxylic ester, R<SP>1</SP> is a benzene nucleus optionally substituted by chlorine, bromine, alkyl or nitro, R<SP>2</SP> is H or an alkyl or aryl group both having up to 8 carbon atoms, and R<SP>3</SP> and R<SP>4</SP> are C 1 -C 6  alkyl groups optionally substituted by cyano. They are prepared by condensing a pyrylium salt of the general formula or a vinyl ketone of the general formula with a 2-hydroxybenzaldehyde having a group -N(R 3 )R 4  in the 4-position, or by condensing a vinyl ketone of the general formula with an o-hydroxyaldehyde of the general formula in which formulµ A and R 1 -R 4  are as defined above and then cyclizing the condensate formed. The condensation reaction preferably takes place at 20-120 C. in an organic solvent optionally in presence of an acidic or basic condensing agent. The cyclization step may be concurrent with or subsequent to the condensation reaction, preferably in presence of a base. The compounds are used in pressure sensitive copying processes.
Patent GB-247844-A (GB)
Title: Improvements in book-binding
IPC: B42D1/06
Filed: 1925-08-19
Abstract: 247,844. Fellows, J. A. Aug. 19, 1925. Bookbinding. - Books composed of leaves or signatures previously sewn together are secured within a cover in such a way that the hinges or connections between the covers and the book are at the corner edges or joints 22, Fig. 16, of the leaves, the entire back of the signatures intermediate of the connections being free from the back of the cover. As shown in Fig. 1 the connecting members between the book and cover comprise a binding sheet 30 and a lining sheet 31 sewn together along two parallel rows 32 of stitches spaced at a distance equal to the thickness of the book. The side flaps or edges 33 of the binding sheet and the portion between the stitches are secured to the back and sides of the bound book leaves by adhesive, and the under side of the lining sheet is coated with adhesive and secured to the inside of the cover back and adjacent cover leaves. Fig. 9 shows the sheets attached to a stiff cover, the side flaps 34 of the lining sheet 31 being secured to the stiff inner members 40, and the intermediate portion being secured to the back 25 of the cover, which extends around the members 40 at 41, 42. The binding and lining sheets may be of sufficient size to provide side flaps which cover either or both of the surfaces of the end leaves or the insides of the cover leaves. In another modification, Fig. 10, the binding sheet is replaced by two separate edge binders 45 sewn at 32 to a lining sheet 31 with flaps 34, or two corner lining sheets may be employed with either a single complete binding sheet or two edge binders. In other modifications either or both the edge binders or corner lining sheets are dispensed with; in the latter instance the corner edges or joints of the leaves are sewn directly to the flexible corners of the back of the cover.
Patent GB-692311-A (GB)
Title: Improvements relating to indicating apparatus for use in sectionalised machinery
Inventor: WELLS NORMAN SIMPSON
IPC: H02P5/50
Filed: 1950-08-23
Abstract: 692,311. Electric indicating systems..ENGLISH ELECTRIC CO., Ltd. Aug. 17, 1951 [Aug. 23, 1950]. No. 20837/50. Class 40 (i). In sectionalized machinery wherein three or more independently driven machine sections operate' sequentially upon linear material passing therethrough, the elongation imparted to the material between two sections is measured by comparing differentially electrical quantities proportional to the speeds of the two sections, the measurement being in addition varied according to the setting of a main speed controller, which varies the speeds of all sections simultaneously, so that percentage elongation may be indicated. As shown, section drive motors M' ... M' drive respective tachogenerators G' ... G<SP>4</SP>, the outputs of which are rectified in bridges R' ... R<SP>4</SP>. The D.C. outputs of adjacent pairs of the generators are connected differentially by a selector switch S across a potentiometer MP the movable contact of which is ganged to the main. speed control, not shown, so that the proportion of the total potentiometer voltage applied across a voltmeter V varies inversely with thesetting of the main speed controller. The voltmeter may then be calibrated in terms of percentage elongation. Alternatively, separate indicators may be used for indicating the percentage elongation between each pair of sections. Continuously recording meters and D.C. tachogenerators may be used. Specification 645,774, [Group XXXV], is referred to.
Patent GB-1107614-A (GB)
Title: Electronic musical instruments
IPC: G10H1/02
Filed: 1966-05-11
Abstract: 1,107,614. Electronic musical instruments. WURLITZER CO. 11 May, 1966 [12 May, 1965], No. 20843/66. Heading G5J. In an electronic musical instrument, signals from tone generators are gated through diodes normally maintained closed by charges stored on associated capacitors. In the organ shown tone generators 28 generate square waves the voltage of which is always positive. Each tone generator is connected through an associated circuit, only one of which is shown, to filters and stops as at 64, 68 for the upper manual and 118, 122 for the lower manual. Key switches 96 and 150 are operated by the keys of the upper and lower manuals respectively. When, for example, key switch 96-1 is closed a high positive potential is applied to a junction 34 causing the diode 32 to conduct. Thus the tone from the generator 28-1 is applied to the filters 64 and/or 68 according to the setting of the stops. Diode 32, 40 and 32, 102 are series-connected as shown to reduce noise due to leakage of the diodes when no keys are closed, and capacitors 38, 44 and 106 store this leakage current, reducing the potential drop across the diodes and thus further reducing leakage. Switches 92 and 146 when closed connect sustaining capacitors 90 and 142 in circuit. The upper manual also has a variable sustain comprising a potentiometer 48 by means of which a diode path 54 to earth may be controlled. Additional switches 150-# operated by keys of the lower manual each simultaneously open the diode gates 32, 102 associated with predetermined groups of tone generators to produce chime tones.
Patent GB-824567-A (GB)
Title: Process for producing pure monovinylacetylene from gas mixtures
IPC: C07C7/11
Filed: 1956-07-05
Abstract: Monovinyl-acetylene is separated from mixtures of gases containing also acetylene and its homologues or acrylonitrile by washing the cooled gas mixture with water to extract acid components and possibly acrylonitrile, and then extracting with a solvent mixture consisting of at least 50% by weight of acetone, in two stages, first to remove the compounds boiling at a higher temperature than monovinyl-acetylene, and preferably under pressure; second to extract the monovinyl-acetylene also under pressure, and using a lower temperature.  A temperature of about 86 DEG  C. is used in the first column, and the effluent gases then cooled to 5 DEG  to 7 DEG  C. in the second.  The solvent used in addition to acetone may also contain acetaldehyde, water and divinyl acetylene formed in the acrylonitrile reactor.
Patent GB-681052-A (GB)
Title: Improvements in the preservation of food
IPC: A23L13/40
Filed: 1950-08-24
Abstract: Food is treated with an alkali salt of carboxymethyl cellulose before preservation by heating in a closed vessel at above 100 DEG  C. According to examples, a grade of sodium carboxymethyl cellulose having viscosity 100-200 cp. in 1 per cent solution and grades having viscosity 2000 cp. in 1 per cent solution are employed in the canning of gutted and filleted herrings and sausage meats of different fat contents.  The fish is crumbed with the sodium carboxymethyl cellulose and is placed in cans containing arachis oil, tomato pur<\>aee is added, the cans are closed, and are then heated for 1 hr. at 110 DEG  C.  The sausage meat is mixed with flour and the sodium carboxymethyl cellulose, the mixture is canned, and the cans are heated for 1 hr. at 107 DEG  C. or for 90 min. at 115 DEG  C.
Patent GB-294542-A (GB)
Title: Improvements in transformers of alternate currents, in which the number of phases ofthe secondary winding is different from the number of phases of the primary winding
IPC: H01F30/14
Filed: 1928-07-21
Abstract: 294,542. Urbinati, M. July 25, 1927. [Convention date]. Polyphase transformers. -Relates to conversion systems employing transformers of the kind halving more than twice as manv secondary phases as primary phases i.e. in which it is necessary to obtain certain secondary phases by phase combination, and consists in so proportioning the valves of the phases so derived that their vectors terminate on the perimeter of a polygon thus making it possible to employ simple fractional valves of the fundamental phases as components of the derived phases. Fig. 2 shows vectors for a 3-phase to 30-phase transformer in which the secondary phases 01, 02, 03 and the opposed phases 01<1> , 02<1>, 03<1> are obtained directly and the intermediate phases 04, 05, 06, &c. are obtained by combining vectors 04<1>, 44<1> &c., the values of which are simple fractions of the fundamental phases 01, 02 &c.. Specification 292,617 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to Specification 289,401. This reference does not appear in the Specification as accepted.
Patent GB-789895-A (GB)
Title: Arc melting furnace
IPC: F27D11/08
Filed: 1955-07-22
Abstract: 789,895. Arc melting furnaces. IMPERIAL CHEMICAL INDUSTRIES, Ltd., and ROBINSON, P. J. July 11, 1956 [July 22, 1955], No. 21249/55. Class 39(3) Small quantities of metal, e.g. zirconium or titanium or alloys are melted in the absence of contaminating gases in a sealed furnace in which several charges are supported on a rotatable cooled hearth 1 and each charge in turn is located beneath an electrode 16 and melted by an arc struck between the electrode and the charge. The melting is carried out in an inert gas or a vacuum, and the first charge melted comprises a " getter" for removing oxygen or other contaminants from the furnace atmosphere. The hearth 1 has several equally spaced cups 2 for the charges at a constant distance from its centre and is removably attached to a circular watercooling chamber 3 mounted on a hollow shaft 4 rotatable by a hand wheel 11 to rotate the hearth. Cooling water entering through a pipe 17 in the shaft 4 passes over a deflecting plate 6 mounted on a spigot 5 on the shaft 4. Water passes through holes 7 in the spigot and returns over the pipe 17 to a flexible outlet 17. The furnace comprises a casing 12 removably secured to a base 9 and having a turret 13 with a window 14. A water-cooled non-consumable electrode 16 with a tip of tungsten or graphite is mounted on a flexible detachable metal bellows 19 on the turret. The electrode is manipulated by an insulating handle 20 thereon to strike an arc on to the metal in the cups 2 of the copper hearth 1, the centre of which carries a tungsten disc for striking the arc. The turret and casing are watercooled and a vacuum or inert gas is maintained by pipes 15, 15a.
Patent GB-455319-A (GB)
Title: Improved means for mounting instruments in their cases
IPC: G01R11/04
Filed: 1935-07-26
Abstract: 455,319. Electric meters. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and TILSTONE, G., Siemens Works, Stafford. July 26, 1935, No. 21279. [Class 37] [See also Group XIX] Casings. - An electricity supply meter is mounted in its casing by attaching the instrument at two points 3, 4 to the end o a slightly flexible strip 7 the strip being secure( at its centre 8 to the casing. The instrument is thus protected fron effects arising from the distortion of the casing The instrument may be fixed directly to the casing at a third point 5, or another strip 7 and two further attachment points, similar to 3 and 4, may be provided. The casing may be made of a plastic moulded or similar material.
Patent GB-1519129-A (GB)
Title: Filling device for cigarette sleeves
IPC: A24C5/42
Filed: 1977-05-20
Abstract: In order to permit advantageous handling of the filling apparatus with a force acting directly in the direction of movement of the tongue (12), without having to accept an undesirable increase in size and without inconvenient parts projecting during non-use, an actuating rod is provided which can be coupled to and uncoupled from the tongue (12) and by means of which the tongue (12) can be displaced in both directions. In the uncoupled state, the actuating rod (17) can be pushed into the housing or into the empty tobacco chamber (16). <IMAGE>
Patent GB-1529540-A (GB)
Title: Device for feeding livestock
IPC: A01K5/02
Filed: 1977-05-20
Abstract: 1529540 Feeding animals LOHMANNAPPARATEBAU GmbH 20 May 1977 [20 Nov 1976] 21337/77 Heading AIM A conveyor chain 4 conveys feed along a supply conduit 2 having a continuous slot 3 discharging into a trough 11, an inverted channel 5 enclosing the supply conduit. The trough 11 can be raised from a feeding position to a loading position in which the flat base 8 of the trough engages the ends of side walls 6 of the channel 5 and raises it to a desired height so that an adjusted volume is enclosed between the bottom of the conduit, the side walls 6 and the bottom of the trough and is filled with fodder when the conveyor chain is operated. A uniform and adjustable quantity of feed is thus supplied to the trough.
Patent GB-336292-A (GB)
Title: A process and method of combining rubber with solid substances
IPC: B29C43/00
Filed: 1929-07-12
Abstract: 336,292. Warwick, B. O., and Warwick, M., (trading as Warwick's Time Stamp Co.). July 12, 1929. Moulding rubber (&c.-Articles made in part of rubber and in part of a moulded hard material are formed by moulding the two materials together. Example: uncured rubber and powder known by the registered name Bakelite are moulded together under heat and pressure, the rubber being thereby cured, and the Bakelite converted into a hardened mass firmly united with the rubber.
Patent GB-531502-A (GB)
Title: Improvements in or relating to supports for displaying goods
IPC: A47F5/04
Filed: 1939-07-24
Abstract: 531,502. Display stands. BEAUVAIS, M., and CALLIAS, G. A. July 24, 1939, No. 21503. Convention date, Jan. 9. [Class 52 (iii)] A display stand of the kind comprising a pedestal with means for holding rods, shelves, &c. consists of a base 1 having a spigot 2 and a number of telescoping interchangeable parts 3, 4 and 5, 6 at least one being provided with a recess 10 to accommodate a shelf, rod or the like 11 the shelf &c. being clamped by means of an inner cylinder 7 which descends on rotation by means of a pin 9 and cam slot 8. In a modification the cylinder 7 may be replaced by a screw disc carried by the upper part of the member 5, 6.
Patent GB-423369-A (GB)
Title: Improvements in or relating to electric clocks
IPC: G04C21/18
Filed: 1933-07-31
Abstract: 423,369. Electric alarm clocks. BRITISH SANGAMO CO., Ltd., and BUTHERUS, F. R., Cambridge Arterial Road, Enfield, Middlesex. July 31, 1933, No. 21521. [Class 139] An electric alarm clock driven by a synchronous electric motor is arranged so that at any predetermined time a gong-striking member (45, 47, 49) rotates to a position where it is coupled directly with means (constantly running wheel 6) actuated by the motor, so that the member vibrates and gives an alarm. The synchronous motor, (not shown), drives a shaft 1 which, through gearing 3, shaft 2, and gearing 5, rotates a shaft 4 carrying a wheel 6, the teeth of which actuate the alarm piece 49 against spring 50, piece 49 being rigid with shaft 47 and alarm hammer 45, 46. Shaft 4 drives, through train 8, 7, 9, 10, 11 and 12, a wheel 13 loose on shaft 14 carrying the minute hand 17. Rigid with shaft 14 are a pinion 15 and a friction plate 16 which contacts with wheel 13. In a central hole of the dial 27 there rotates an alarm setting disc 26 which is loose on the hour sleeve 24 and is geared by wheels 33 to shaft 30 which has rigid with it an alarm setting knob 31 and a cam 37. A 24-hour index surrounds the disc 26. The cam 37 coacts with a notched member 38 on a wheel 34 which is loose on shaft 30 and is geared to a wheel 23 rigid with the sleeve 24 carrying the hour hand 25. Straddling the wheel 34 is a fork 43 on a lever 40 pivoted at 41 and having a cam piece 44 which in its normal right hand position raises the hammer arm 45 out of action. The alarm shaft 30 being turned to set the alarm for a certain time, the piece 38 and wheel 34 are moved left against spring 39. At the alarm instant, cam 37 registers with notch 38, wheel 34 moves to the right, lever 40 moves counterclockwise and cam 44 allows arm 45 to be lowered by spring 50 so that piece 49 coacts with the teeth of the constantly running wheel 6 and the alarm is sounded until continued rotation of wheel 34 forces cam 37 out of notch 38, whereupon wheel 38 rocks lever 40 clockwise to relock the hammer 45, 46. To disable the alarm, knob 52 is pressed inwards to rotate a lever 55 clockwise about its pivot 56 so that a notch 57 therein raises and locks the alarm hammer 45. A slot in lever 55 coacts with a pin on lever 40 so that as the wheel 34 continues its normal rotation and moves the upper half of lever 40 to the right to relock the alarm hammer, the pin and slot connection automatically moves lever 55 counterclockwise to remove the notch 57. To permanently disable the alarm, knob 64 and sleeve 60 are rotated so that an arm 63 on the sleeve raises the alarm hammer 45, 46 and piece 49 out of action. The two disabling members 52, 64 may be combined into one member which has both axial and rotary movement. Hand-setting apparatus.-The hand-setting shaft 18, 20 is geared by wheels 21 to a pinion 15 on the minute hand shaft 14 and by gear 22 to a wheel 23 on the hour hand sleeve 24, the gear ratio of the two trains being 1 : 12.