baber/WOPTO huggingface dataset:
Patent GB-168627-A (GB)
Title: An improved method of and apparatus for the recovery of sulphur dioxide from furnace gases and other gases containing the same
IPC: B01D53/14
Filed: 1920-05-04
Abstract: 168,627. Eustis, A. H. May 4,1920. Sulphur dioxide is separated from gas mixtures such as smelter smoke by absorption in and extraction from a liquid, the extraction from the liquid being effected by reducing the partial pressure of the sulphur dioxide in the atmosphere contacting with the liquid by diluting with a copious supply of a gas such as steam which is condensible at lower pressure and/or higher temperature than sulphur dioxide. The gas mixture to be treated is led by a pipe 1 to a cooler 2, scrubbers 4<a>, 4<b>, 4<c>, 4<d>, scrubbers 6a, 6b, 6<c>, 6d and tower 8, from which the spent gas is discharged to the atmosphere 9. All the towers are packed and supplied with water or water containing a sulphite such as aluminium, iron, or copper sulphite. The solution from the scrubbers passes to a store tank 13 and is fed to a tower 16 in which the absorbed gas is liberated. This tower contains perforated shelves 17, 18, the shelves 17 having an opening in the middle and the shelves 18 being smaller than the section of the tower so as to have an annual space around them, thus providing a tortuous path for the gas. Exhaust steam from an engine 23 is supplied to the tower by a pipe 22, and sulphur dioxide mixed with the steam escapes by a pipe 20. The pressure in the tower is reduced by means of a vacuum pump 24a connected with the pipe 20. The gas withdrawn by the pipe 20 passes through surface coolers 21 cooled by brine, ammonia, sulphur dioxide, &c. to remove water and thence through alternate pumps 24<a>, 24<b>, 24<c> and coolers 26a, 26b, 26<c>, the pumps being jacketed to maintain the gas in them above its dew point to avoid corrosion as described in Specification 167,725. The gas then passes through a cooler 30, compressor 32, and trap 35 iu which it is dried by liquid sulphur dioxide as described in Specification 167,726, and is then liquefied in a cooler 33 and stored in a container 34. Reference has been directed by the Comptroller to Specifications 26152/08 and 1882/09.
Patent GB-586526-A (GB)
Title: Improvements in or relating to the manufacture of salts of di-isopropyl-salicylic acid
IPC: C07C65/05
Filed: 1944-06-29
Abstract: Basic salts of di-isopropyl salicylic acid are obtained by treating di-isopropyl-salicylic acid with considerably more than a chemically equivalent proportion of a compound of a metal preferably in an alkaline reacting medium such as in an alkali metal hydroxide solution.  Specified metals are: lithium, calcium, strontium, barium, magnesium, zinc, cadmium, beryllium, aluminium, nickel and cobalt. In examples relating to the preparation of such salts the reactions take place in benzene, methyl alcohol, and ethyl alcohol.ALSO:Basic salts of di-isopropyl salicylic acid are obtained by treating di-isopropyl-salicylic acid with considerably more than a chemically equivalent proportion of a compound of a metal preferably in an alkaline reacting medium such as in an alkali metal hydroxide solution.  Specified metals are: lithium, calcium, strontium, barium, magnesium, zinc, cadmium, beryllium, aluminium, nickel and cobalt. In examples, basic salts of di-isopropyl salicylic acid with the metal named are obtained by treating: (1) 0.02 gm. e.w. acid in benzene solution with 0.03 gm. e.w. aqueous zinc sulphate in the presence of 0.03 gm. e.w. aqueous sodium hydroxide; (2) 0.02 gm. e.w. acid in benzene solution with 0.04 gm. e.w. aqueous zinc sulphate in the presence of 0.04 gm. e.w. aqueous sodium hydroxide; (3) 0.05 gm. e.w. acid with 0.1 gm. e.w. magnesium as the methoxide in methyl alcohol; (4) a 95 per cent ethanol solution of the acid with a solution of beryllium in 10 N pure hydrochloric acid (the amounts being in the ratio of 0.5 gm. e.w. acid to 1.0 gm. e.w. metal) in the presence p  of sufficient aqueous methanol to give a homogeneous solution.
Patent GB-387310-A (GB)
Title: Process for manufacturing moisture-proof material for packing, insulating and the like purposes
IPC: B65D65/40
Filed: 1931-04-27
Abstract: A moisture-proof material for protecting seeds comprises a plurality of sheets of paper, cardboard, or other fibrous material, which when taken individually possess a relatively low moisture-proofness.  The sheets are laid one upon another.  In one form, a sheet containing no water-repellant substance is associated with one or more sheets containing small quantities of water-repellant substances, and strengthening layers may be added.
Patent GB-833355-A (GB)
Title: Fluid operated alarm system
Inventor: SPERRY ALBERT F
IPC: G08B7/04
Filed: 1956-04-24
Abstract: 833,355. Visible signalling apparatus. PANELLIT Inc. April 24, 1956, No. 12476/56. Class 118 (2). In a fluid-pressure operated alarm system comprising a plurality of indicators 13 mounted upon a panel 11 and associated with respective sensing units 14 (only one of which is shown), the occurrence of a predetermined abnormal condition in the region of a unit 14 causes a reduction in fluid pressure at the corresponding indicator 13 thus releasing a coloured button which projects to provide a visual indication and simultaneously completes an air-pressure line to a common whistle 39 whereby an attendant's attention is drawn to the existence of the alarm condition. The occurrence of the abnormal condition opens a bleeder in the corresponding valve 14 whereby the pressure supplied from a source 15 is reduced at the corresponding indicator 13 and a bellows 17, Fig. 2, collapses. This causes triangular member 19 to pivot withdrawing detent 20 to release the rigid arm 23 attached to the button 25 which consequently under the action of spring 26 is moved to a position where it projects from the front of the panel 11. The sides of the button are brightly coloured to provide an alarm indication, and a channel 34 in the button completes a connection between a pressure source and the whistle 39 which consequently sounds. The attendant acknowledges receipt of the alarm signal by raising the approate lever A; this draws down the corresponding rod 43 and releases catch 40 so that spring 44, now in a tensioned condition, pulls a cylindrical sleeve 36 forward to interrupt the pressure connection to the whistle 39 and conceal the brightly coloured sides of the button 25. The indicator may be restored to its original condition after the removal of the abnormal condition by lifting the corresponding lever R. This draws rod 51 down whereby bell-crank lever 52 is rotated to force arm 23 back until it reengages with detent 20, the sleeve 36 being -simultaneously carried back by the arm 23. Operation of lever A also restores the indicator to its original condition providing the abnormal condition has been removed by virtue of crossarm 53a attached to rod 43 and carrying a projection 53c which rotates bell-crank lever 52 when the rod 43 is pulled down. The complete alarm unit is also provided with gang control levers GA, GR. These operate on respective cross arms so that on their being actuated all the corresponding rods 43 and 51 respectively are drawn down. The operations of acknowledgment and/or re-setting may consequently be effected simultaneously for a plurality of indicators 13 by the use of these levers. Movement of the rods 43 and 51 may instead be effected by solenoids under control of push-buttons in electrical circuits, Fig. 4 (not shown).
Patent GB-801859-A (GB)
Title: Fluid tight joints for pipes
Inventor: WIGLEY ETHEL LOUIE
IPC: F16L47/04
Filed: 1956-04-24
Abstract: 801,859. Pipe joints. WIGLEY, E. L. March 22, 1957 [April 24, 1956], No. 12561 /56. Class 99(1). ). In a stuffing box type joint for connecting a plastic pipe 1 to a union member 14 a flanged sleeve 4 is screwed into one end of the pipe which is placed in the member 14 so that the flange 5 abuts against a shoulder 16 and a resilient washer 7 is compressed against the flange 5 and forced into sealing engagement with the pipe 1 and member 14 by a gland nut 10 screwing into member 14. Rotation of the washer 7 during tightening of the nut 10 is prevented by a cap-shaped or ring-like member 8 situated between the parts 7, 10, and one or more grooves may be formed on the smooth part 17 of the bore of member 14. According to the Provisional Specification the sleeve 4 may be secured in the pipe 1 by projections thereon which bite into the pipe wall.
Patent GB-1010904-A (GB)
Title: Improvements in and relating to the treatment of elemental sulphur
Inventor: ELLIOTT HERBERT JAMES
IPC: C01B17/02
Filed: 1962-04-02
Abstract: Particulate sulphur is prepared by feeding pure molten sulphur to a vessel into which a body of water is also introduced, and causing the body of water in the vessel with the sulphur therein to be sufficiently and continuously stirred with a rotary action to disperse the sulphur in the water as discrete molten globules, which globules are solidified by cooling either in the same vessel or elsewhere into discrete pellets or granules, the stirring being maintained while the water and molten sulphur are in the vessel. Pellets are defined as being <PICT:1010904/C1/1> smooth rounded particles whereas granules are crystalline particles.  The operation may be carried out batchwise or continuously.  In Fig. 1, the sulphur feed is charged to the vessel 7 by means of a pump 2 through a heat exchanger 4 whilst hot water is added to 7 by conduit 9 with/without added sulphur-containing material.  At least one hollow-cone stirrer is mounted on a hollow shaft 11 through which steam is injected into the contents of the container.  Steam may also be injected through 24.  Safety valves 22 control the vapour pressure in the container. Sulphur crystals to promote solidification may be added by pump 43 whilst the contents of the vessel 7 are discharged by a pump 27 which may be immersed in the vessel contents to at least one heat exchanger, e.g. 29, 30 and 31 or a quench tank containing hot water. Particulate solid product is removed from the water by classifying. In another apparatus (Fig. 3, not shown) batch-wise or continuous operation is disclosed and the charge means may additionally be a charge opening whilst the discharge means may be a rising disc-valve situated at the base of the vessel. Specification 1,001,486 is referred to.
Patent GB-455591-A (GB)
Title: Improvements in and relating to electric discharge tubes
IPC: H01J17/22
Filed: 1936-05-04
Abstract: 455,591. Discharge apparatus. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 4, 1936, No. 12582. Convention date, May 4, 1935. [Class 39 (i)] In mercury, gallium, cadmium, &c. vapour discharge tubes, the reserve of the vapourforming medium is contained in a chamber 17, Fig. 2, of low heat conductivity projecting outwardly from the envelope and having mounted thereon a heat-radiating structure 14 constructed, for example, with vanes 19. The chamber 17 is formed by pinching the end of a tube 15 the conductivity of which is made low by reason of its small cross-section or by using a material of low conductivity or by incorporating a heat insulating barrier in its structure. The radiating structure consists of a copper &c. cylinder 18 and a plurality of channel members 19 forming the vanes. Thermal contact with the chamber is maintained by a mass of fusible material 20 such as solder. Alternatively the vanes may be constructed by pairs of metal sheets formed so as to envelope the chamber. In the application described, the discharge tube has a metal envelope 1, Fig. 1, forming the anode. The cathode 3 is a pleated metal ribbon of nickel &c. coated with an emissive material such as barium oxide. The lead-in connections are as described in Specification 448,727, [Group XI].
Patent GB-318225-A (GB)
Title: Improvements in or relating to mechanism for conveying sheets
IPC: D21J1/00
Filed: 1929-04-23
Abstract: 318,225. Upson Co., (Assignees of Upson, C. A.). Aug. 31, 1928, [Convention date]. Discharging and feeding devices for endless-belt conveyers; driving-gear; roller-way conveyers.-Sheets D of wallboard, &c., are transferred in a drying-oven from one roller conveyer to another at a lower level by inclined roller conveyers 21, 25, the latter of which is provided with rollers 26 at its upper end which normally are at rest but are driven at high speed in a counter-clockwise direction by a motor 29 and sprocket-chains 28 as soon as a sheet is deposited upon them. A roller 40 on the plunger 36 of a switch in the starting circuit of the motor 29 normally is maintained by a spring above the rollers 26. When this roller is struck by the rear edge of a sheet, it is depressed and the starting circuit is completed. The sheets are maintained in contact with the lower rollers on the conveyer 21 by rollers 49, and are directed on to the rollers 26 by deflectors 50. The rollers 18 at the junction of the conveyers 25, 16 are provided with over-running clutch elements, and at this point the sheets are retarded by idle rollers 48. Belts may be used instead of roller-way conveyers. Specification 333,161, [Class 87 (ii), Moulding plastic &c. substances], is referred to.
Patent GB-669230-A (GB)
Title: Improvements in or relating to bottle crates
Inventor: HILL FRANK
IPC: B65D85/30
Filed: 1949-05-12
Abstract: 669,230. Crates; bottle openers. FISHER & LUDLOW, Ltd. May 10, 1950. [May 12, 1949] No. 12645/49. Classes 18 and 125(ii). A sheet metal bottle crate embodies one or more crown cork openers. The crate may be as described in Specifications 617,777 and 617,861. The opener is formed integrally with the body of the crate and may be formed by slitting an end wall and depressing material below the slit inwardly and above the slit outwardly as at 13, 15 respectively, the material above the slit being cut away to accommodate the bottle mouth.
Patent GB-986423-A (GB)
Title: Method and apparatus for treating sand
Inventor: GRANATH AXEL GEORGE
IPC: B22C5/04
Filed: 1961-04-07
Abstract: 986,423. Treating mould and core materials. NATIONAL ENGINEERING CO: OF CANADA Ltd. April 7, 1961, No. 12684/61. Heading B3F. [Also in Division B8] Foundry sand is simultaneously elevated and aerated and then centrifugally impelled against a baffle member which is capable of positive flexing under the impact of the sand whereby compacting of the aerated sand is minimized. The endless belt conveyer 30, Figs. 1 and 3, carries serrated ledges 31<SP>1</SP> which pick up sand from the bottom 28 of a loading hopper 12 and discharge it from the top curve against a rubber cushioning element 15 which minimizes compacting of the sand. The sand then enters the moulder's hopper 16 having a discharge shoot with a gate 46 operated by a handle 45. Alternatively the sand may be directed into a receptacle for storage or on to a conveyer. The loading hopper 12 may be supplied with sand from a mixer unit. A spill housing 14 is mounted beneath the belt, with a removable clean-out section 41. In a modification, Figs. 7 and 8, the cushioning element comprises a flexible metal baffle plate which is adjustable by means of a stop 150 to control the direction of the sand discharge, which may be directed into a hopper 116 with two outlets 116a, 116b. Louvres 210 may be opened to allow excess sand to re-enter the hopper 112 to prevent overloading of the conveyer. A deflector 160, Fig. 10, is mounted between the belt runs to direct sand falling from the upper run away from the belt-supporting roller 133, and deflectors comprising rubber mats, Fig. 12 (not shown), shield the roller bearings from falling sand. The lower end of th spill housing 114, Fig. 13, is so constructed as to present no sharp corners in which build-up of sand may commence, and the discharge opening 205 of the hopper 112 may be varied in size by adjustment of the plate 200.
Patent GB-848528-A (GB)
Title: Process for removing carbon dioxide from gas containing same
IPC: C10K1/12
Filed: 1958-04-22
Abstract: A process for removing carbon dioxide from ammonia-synthesis gas mixtures comprises contacting said gas mixture in an absorber with a hot aqueous solution of potassium carbonate, passing the unreacted gases to a compressor, compressing said unreacted gases to a higher pressure, contacting the recompressed gases with a hot alkali carbonate solution in a second absorber to remove substantially all of the remaining carbon dioxide from the gas mixture and regenerating the spent scrubbing solution for recycle by letting down the solution to substantially atmospheric pressure while maintaining the temperature of said solution constant.  The fresh potassium carbonate scrubbing solution may be delivered to each of the absorbers directly from the regeneration step or alternatively the scrubbing solution from the regeneration may be delivered to the second absorber and thereafter to the first absorber before being returned to the regeneration step.
Patent GB-608493-A (GB)
Title: Improvements in or relating to cutting apparatus for lenses, especially spectacle-lenses
IPC: C03B33/04
Filed: 1945-05-22
Abstract: 608,493. Grinding lenses. BRANDT AKTIEBOLAG, J. P. May 22, 1945, No. 12747. Convention date, July 25, 1944. [Class 60] [Also in Group XX] An apparatus for cutting lenses to a desired shape and provided with a rotatable lenssupporting table and a cutting tool is characterised by the table having an aperture for the passage of rays from a projection device so that an image of a reticle is formed on a ruled disc located on the side of the lens remote from the projection device and whereby the position of the optical centre of the lens relative to its final contour may be determined and by the cutting tool being controlled by the rotation of a pattern or template having the shape of the peripheral contour to which the lens is to be cut. As shown, a frame 2 is slidable on a base 1 and carries a projection system including a collimating lens 5 whereby an image of a reticle 4 is formed on a ruled disc 11 and viewed by an ocular 12, the light from the projection device passing through an aperture in a rotatable table 14 carried by a standard 13 fixed to the base. This table is rotatable through a worm gear mechanism 20, 21 and carries by projections 16 as of rubber the lens 17 which is to be cut to the shape of a pattern 24 which is seated on the table and is rotatable therewith; a clamp 18 is spring-urged into contact with the lens and the pattern 24 is contacted by the extremity of an arm 28 which is pivoted to the frame 2 and pivotally supports at 27 a block carrying a diamond 25 with which the lens is to be cut. In use, the lens 17 and reticle 4 are adjusted until an image of the latter coincides with a hair-cross on the ruled disc 11, the lens then being optically centred in the axis by the projection system. The table 14 is then rotated and the lens is cut to the shape of the pattern 24. Decentering of the lens with respect to its new contour is effected by movement of the frame 2 before the cutting operation, the degree of the displacement being indicated by a scale and index 30, 31. When lens 17 is astigmatic, a plate 32 provided with a small aperture may be rotated about its pivot 35 to lie in the optical path and when lens 17 is bi-focal, a lens 33 may be provided in the plate. An embodiment is also described for use when a bi-focal lens is to be cut wherein two oculars are mounted on a disc rotatable on the frame 2, one of which is of a power sufficient to give a simultaneous view of the line of demarcation between the " near " and " distant " parts of the lens and a graduated disc placed in the aperture of the table. Lens 17 and pattern 24 may also be mounted on separate tables, rotatable by the same mechanism so that decentering is obtained. by the measured displacement of the pattern only. Provision is also made in this embodiment for varying the size of the cut lens while conforming to the shape of the pattern 24. Instead of a diamond, a rotating grinding-wheel or other grinding-tool may be used.
Patent GB-274042-A (GB)
Title: Improvements in or relating to the control of fuel injection mechanism for internal combustion engines
IPC: F02D1/02
Filed: 1927-05-12
Abstract: 274,042. Sulzer FrÞres Soc. Anon. July 10, 1926, [Convention date]. Cylinders receiving liquid fuel.-In a fuel-injection device of the kind in which the fuel is stored in an accumulator, the injection valve is held closed and also opened by the pressure of the fuel without, any mechanical control of the injection valve. The delivery pipe h of the pump a supplying fuel to the accumulator r is connected on the pump side of the non-return valve k to a chamber m containing a piston secured to the spindle of the injection valve d. The pressure in the chamber m is relieved by opening a valve o in the pump chamber and the valve d is then opened by the fuel-pressure in the chamber r, the fuel being injected by the spring- pressed accumulator e. In a modification, Fig. 2, the accumulator i is of the elastic-wall type and the valve d is assisted to close by the spring l.
Patent GB-184130-A (GB)
Title: Improvements in or relating to train control systems and apparatus for use therewith
IPC: B61L3/00
Filed: 1921-04-28
Abstract: 184,130. Automatic Telephone Manufacturing Co., Ltd., Hudd, A. E., and Bound, A. F. April 28, 1921. Electromagnetic switches; electromagnetic interrupters; switches, latching and unlatching; retarding and time-limit devices. -In a train control system of the type described in Specification 182,259 in which is a time-limit device comprising a member controlled so as to be maintained in oscillation and adapted to be set in operation by an operating-member when the train passes a certain point to enable the operating - member to exert a controlling action on the train only if it reaches a second point before a predetermined time has elapsed, the time element device comprises an electromagnetic switch having an operating coil 120, the circuit of which is completed by the train at the first point. The armature 121 is pivoted at 124 and provided with a curved arm 123 which has a projection 126 engaging a projection 127 on the shaft 128 carrying the balance weight 129. A shaft 130 pivoted in brackets 131, 132 carries a disc 134, a ratchet plate 133, and an arm 135 loosely supporting a roller 136 between the disc 134 and the armature arm 123. Normally the arm 135 rests in its lowest position bv gravity control, this position being capable of adjustment by a screw 137. When the coil 120 is excited the armature moves sufficiently to disengage projections 126, 127, allowing the balance weight 129 to swing. At the same time the armature 121 disengages the lower contacts 138, 139 with their resting contacts 140, 141, but is prevented by the interposition of the roller 136 between the disc 134 and the curved surface 125 of the arm 123 from moving sufficiently to cause engagement of the upper pairs of contacts. The balance weight 129 with hole-pieces 147 now oscillates under the action of its electromagnet 146, interrupting its energizing circuit periodically at 148, 149. Each oscillation of the weight 129 causes a cam 150 to move over a lever 172 pivoted at 173, the lever 172 carrying a pawl 170 which steps round the ratchet-wheel 133, thereby moving round the roller 130 until it is finallv opposite a depression 132 in the curved surface of the armature arm 125. The armature 121 is now able to complete its motion, joining its upper contacts 142, 143 to their co-operating contacts 144, 145. The engagement of these contacts completes the circuit for removing a train control device from a second point in the track, the track being controlled only if it reaches such point before the time taken in stepping round the ratchet-wheel has elapsed. When the coil 120 is de-energized, the armature 121 is released, thereby allowing the arm 135 to fall to its former position. At the same time the projection 126 re-engages the projection' 127, thereby arresting the oscillations of the balance weight 129.