baber/WOPTO huggingface dataset:
Patent GB-745034-A (GB)
Title: Separation of adipic acid from a mixture containing succinic acid with or without other mono and dicarboxylic aliphatic acids
Filed: 1953-12-22
Abstract: Adipic acid is recovered from a mixture containing succinic acid with or without other mono or dicarboxylic aliphatic acids in an aqueous solution, there being present a concentration of succinic acid equal to or higher than of adipic acid, by a process comprising partially neutralizing the succinic acid present with ammonia, ammonium hydroxide or the hydroxides of alkali metals or of alkaline earth metals and thereafter crystallizing the adipic acid from the partially neutralized mixture of acids.  The process is particularly applicable to the treatment of the mixture of mono- and di-carboxylic aliphatic acids left after the separation, by crystallization, of the major part of the adipic acid from the oxidation products of cycloalkanes first by air and then by nitric acid.  A mother liquor containing adipic acid, succinic acid and glutaric acid together with some mono- and other dibasic acids in dilute aqueous nitric acid solution is obtained by this process.  This mother liquor is treated with the base so that the succinic acid is partially neutralized; the solution is cooled and pure adipic acid crystallizes out.  The succinic acid present may be separated from the glutaric acid by acidifying the mother liquor filtrates; succinic acid and any remaining adipic acid precipitated leaving glutaric acid in solution. The succinic and adipic acid mixture is then subjected to recrystallization, the succinic acid crystallizes out and the adipic acid remains in a solution which can be returned to the alkaline crystallization step.  In the examples various acid mixtures containing adipic acid and succinic acid are subjected to the process of the invention using ammonia solution or caustic soda as the base. Specification 633,354 is referred to.
Patent GB-1066298-A (GB)
Title: Rendering apparatus
IPC: C11B1/06
Filed: 1964-09-01
Abstract: Rendering apparatus for recovering fat from fat-containing solids, e.g. tallow from meat scraps, comprises an inclined cylindrical pressure vessel 10 which includes a housing 11, having at the lower end an upwardly projecting feed neck 12 connecting with a pressure feed valve 14 where the material to be rendered is fed into the housing, and at the upper end a downwardly projecting discharge neck 13.  The material is moved up the inclined housing by a helical screw conveyer 21, and is prevented from rotating with the conveyer by one or more rifling strips 46 which are welded to and project inwardly from the inner surface of the housing. The screw conveyer also has attached thereto a plurality of stirring paddles 48 which cause the material to expose different surfaces to the rendering medium, which is steam introduced under pressure through conduit 37.  Water under high pressure is also introduced through spray nozzles 38.  A mixture of fat and water collects at the lower end of the housing and is removed through conduit 39 for subsequent fat recovery, whilst the defatted meal is discharged at the upper end of the housing.  The feed and discharge units are designed to avoid build-up of solids and loss of pressure within the apparatus, and are described in detail with the aid of further figures. <PICT:1066298/C4-C5/1>
Patent GB-1151217-A (GB)
Title: Improvements in or relating to Yarn Guiding Arrangements for Looms
Inventor: HELD PETER ERICH JULIUS
IPC: D03D49/00
Filed: 1965-08-20
Abstract: 1,151,217. Supplying warp to looms. ALBERTON Ltd. 19 Aug., 1966 [20 Aug., 1965], No. 35899/65. Heading D1E. To increase the number of warp ends carried by warp beams without increasing the loom width, beams 21, 22 are arranged at an angle to the direction of the warp and the ends are fed through ceramic guides (26).
Patent GB-830220-A (GB)
Title: Pressure device with a deformable partition of varying thicknes separating two fluids under pressure
IPC: F15B1/10
Filed: 1956-11-23
Abstract: 830,220. Hydraulic accumulators. MERCIER, J. Nov. 23, 1956, No. 35942/56. Class 69 (2). A pressure accumulator comprising a bladder 14 in a rigid container 11, has the bladder so shaped that no pockets of air are formed along the side of the container when the bladder expands, and wear on the bladder is reduced. The bladder is arranged so that as the distance from the gas port 12 increases, the distance of the bladder from the wall of the container increases and the thickness of the bladder wall decreases. The base 16 of the bladder is thickened and reinforced to prevent wear when it is in contact with poppet valve 41 to close liquid port 13.
Patent GB-981110-A (GB)
Title: A potato harvesting plough
IPC: A01D17/10
Filed: 1963-09-12
Abstract: 981,110. Potato-diggers. F. A. UNDERHAUGS FABRIK. Sept. 12, 1963 [Sept. 12, 1962], No. 35952/63. Heading A1F. A potato-harvester comprises a digging share 7, a belt 9 for conveying potatoes from the share to a sorting belt 14, and a trough 15 arranged alongside the sorting belt with the return loop 23 of the belt running along it, whereby potatoes transferred from the belt to the trough are guided along it to an outlet at one end. A spinner 8 sweeps the crop off the share on to the belt 9 and a further rotor 12 is mounted slightly ahead of the share on the side adjacent to the belt to prevent accumulation of trash at that point. An oblique guide 13 impels the potatoes from the belt 9 on to the sorting belt 14 adjacent to which is a platform 16 on which operators stand to feed potatoes into the trough 15. The trough 15 ends short of the belt-run 23 so that the potatoes are discharged into the lowest of a line of baskets 19 on a roller-conveyer 18, each basket, when filled, being released on to the ground by depression of a pedal-operated stop 20. The harvester is mounted on tractor hitch-links 2, 3 and on trailing wheels 6 and can be completely raised by the hitch-linkage. A jointed shaft 4 drives the moving parts from the tractor power take-off.
Patent GB-737987-A (GB)
Title: Improvements in flow controlling devices
IPC: G05D11/13
Filed: 1953-12-29
Abstract: 737,987. Liquid meters. DAUM & CO., SOC. A R.L. Dec. 29, 1953 [Dec. 29, 1952], No. 36107/53. Class 69 (2) [Also in Group XI] A liquid meter comprises a cylinder having an inlet duct 8, an outlet duct 9, and a piston 6 having grooves 13, 14 therein communicating with either end of the cylinder. The piston is slidable along a rod 5a which is of square section and which is rotatable in one direction by an electromagnet and in the other by a spring so that the piston may be oscillated to bring grooves 13, 14 alternately into co-operation with the ducts 8, 9. Liquid under pressure is thus directed towards one end of the cylinder and urges the piston towards the other end to to discharge the liquid contained therein through the outlet duct 9. The stroke of the piston is limited by a stop-rod screwed into the piston. The stop rod is rotatable relatively to the piston from outside the cylinder by means including a square section rod on which the stop rod is slidable so that the stroke length may be adjusted.
Patent GB-339473-A (GB)
Title: Improvements connected with the roofs of motor cars and motor coaches
IPC: B60J9/02
Filed: 1929-11-26
Abstract: 339,473. Nichols, C. H. Nov. 26, 1929. Emergency exits for motor vehicles when overturned comprise a roof or section thereof which is detachably secured in position by catches which are automatically released when the vehicle overturns. The roof 6 is provided with brackets having cylindrical projections 8 with which engage normally rollers 14 carried by weighted levers 11 pivoted on brackets 9 secured to the fixed cantrails or sides of the body. As the vehicle overturns the weighted levers swing over and the projections 8 are released from the rollers 14 to allow the roof to be removed. Other forms of automatic catches may be provided.
Patent GB-836261-A (GB)
Title: Linear motion ball bearing
IPC: F16C29/06
Filed: 1957-11-21
Abstract: 836,261. Rectilinear - motion bearings. BAYLISS, D. W. Nov. 21, 1957, No. 36266/57. Class 12 (1). A rectilinear-motion bearing between a body 1 and a shaft 5 comprises a plurality of endless ball tracks, each of which is formed by an operative run 7 between a bush 4 and the shaft 5 and a return inoperative run 9 through a passage 10 in the body 1, the ends of the runs being connected through curved passageways 11 in the inner faces of end caps 2 secured to the body 1. The balls 6 are guided during their operative runs 7 by shaped rods 19, which retain the balls when the shaft 5 is removed, having ends 16 mounted in the end caps 2. The balls 6 are preferably preloaded during their operative runs 7. Lubricant seals 23 are mounted in grooves 24 in the end caps 2. In a modification, the bush 4 is omitted and the balls run directly between a bore 3<SP>1</SP> in a body 1<SP>1</SP>, Fig. 7, and the shaft 5. In a further modification, the endless ball tracks are carried by a body 31 secured to a shaft 30 and are adapted to co-operate with the bore 35 of a tubular member 351.
Patent GB-171325-A (GB)
Title: Improvements in injectors or sprayers for liquid fuel for internal combustion engines
IPC: F02M61/02
Filed: 1920-12-29
Abstract: 171,325. Gardner, E. Dec. 29, 1920. Cylinders receiving liquid fuel. - Nozzles with whirl chambers are constructed with a fuel passage parallel to the axis of the nozzle e with one or more delivery passages d directed approximately tangentially to the wall of the conical whirl chamber b. Several modifications of the cap a containing the whirl chamber are described.
Patent GB-1150583-A (GB)
Title: A Back-Up Tape for a Weldment Joint
Inventor: KUDER BENEDICT ANTHONY
IPC: B23K35/02
Filed: 1966-08-16
Abstract: 1,150,583. Welding by fusion. B. A. KUDER. 16 Aug., 1966 [17 Aug., 1965], No. 36516/66. Heading B3R. A backing tape comprises a flexible layer of fibrous material adhered centrally to one face of a metal layer to expose edge portions of the face, an adhesive coating being provided on the edge portions so that the tape may be secured to the workpieces. The metal layer 130, 180 is a strip of steel, copper, aluminium or copper or aluminium alloy, 0À003-0À009 inches thick, shaped to receive one or more layers 134, 136, 184 of fibrous material, e.g. glass cloth. Alternatively, the metal layer consists of three overlapping strips 194, 196 adhesively connected. A strip of cardboard may be superposed on the fibrous layer so that after the tape is secured to the workpieces the cardboard can be withdrawn to provide a passage to which an inert backing gas can be fed. In a modification for use in backing a double V-joint, a filler cord 183 is positioned between the layer 184 of glass cloth and the metal layer 180. Welding may be effected by a gas shielded arc using a filler wire and a tungsten or carbon electrode.
Patent GB-1510829-A (GB)
Title: Centrifugal pumps
IPC: F04D29/42
Filed: 1976-09-02
Abstract: 1510829 Centrifugal pumps HOLLANDSCHE AANNEMING MAATSCHAPPIJ BV 2 Sept 1976 [4 Sept 1975] 36544/75 Heading F1C A centrigual pump has at least one protective element for protecting the inner surface of the pump casing surrounding the rotor against wear, the protective element being insertable into or removable from the pump during operation of the pump without the need to dismantle the pump wholly or partly or to remove the pump impeller. Fig. 1 shows the casing of a centrifugal dredge pump in which the inner peripheral surface is protected against abrasive wear by bars or plates 13 which extend parallel to the impeller axis and can have any of a variety of cross-sectional shapes as exemplified by groups A-H. The bars or plates may be of mild steel, wear-resistant steel, reinforced concrete or combination of metals and non-metallic materials such as rubber or plastics, e.g. the bars or plates may be covered with rubber and in the case of plates may be of curved cross-section to match the curvature of the casing. Individual bars or plates may be flexibly linked together like a slotted blind. The bars or plates may be retained against radially inward movement by ledges which may be afforded by side plates 7, 7', Fig.2, which are provided to protect the casing side walls 8 against wear, or may be afforded by, e.g. a circumferentially extending curved metal rod 9 or a triangular fillet 10. Instead, the casing side walls may have circumferentially-extending recesses as shown in Fig.10. Fig. 10 also shows one method of inserting bars 13 into the pump casing without stopping the pump, a hydraulic ram 29 pushing them one at a time from a hopper 21 into the pump casing via an opening 23. Each bar after entering the casing is swept around the casing by the force of the material being pumped until it abuts the previously inserted bar, the first bar being retained by a stop member 14, Fig.1. The bars may instead be fed under gravity from a hopper 25, Fig.11, via a tangential opening 26. To enable worn bars to be expelled while new bars are being inserted, the stop member 14 may comprise a withdrawable plunger 16, Fig.5. An auxiliary stop member 15, Fig.1, may be provided to allow the expulsion of the bars lying between it and the stop member 14 while retaining the remaining bars. Instead of individual bars or plates, a single flexible element may be introduced into the pump casing through an axial slot, a further axial slot being provided for withdrawal of the element. The actuator 4 may be replaceable in the same way as the bars 13 and at the same time.
Patent GB-409829-A (GB)
Title: Improvements in stands or supports for display of shirts, woollen jumpers and like garments
IPC: A47F7/19
Filed: 1932-12-24
Abstract: 409,829. Display stands for garments. CLAYFIELD, A., Union Works, Andover Street, Birmingham, and DUDLEY, C. N., Windsor Road, Holloway, London. Dec. 24, 1932, No. 36562. [Class 52 (v).] A display stand for garments such as shirts comprises an open frame 1 having the lower ends of its side members upturned to form hooks 3 in which the garment rests, and clips 4 comprising opposing spring jaws axially centred on the upper cross bar 2 or upon the upper parts of the side bars, and adapted to grip the top of the garment. The jaws 6 of the clips are pivoted on the bar 2 and a coil spring 8 interposed between them. The clips may comprise integral jaws of springy material. The frame may be supported by a strut 9 or by an arm bent downwardly to engage a bracket.
Patent GB-802655-A (GB)
Title: Process for the production of aromatic disulphonyl hydrazides and their use as gas producing compositions
IPC: C08J9/10
Filed: 1955-02-07
Abstract: Naphthalene-1 : 5-disulphonyl hydrazide, prepared by reacting naphthalene-1 : 5-disulphonyl chloride with hydrazine (see Group IV (b)), is used as a blowing agent in synthetic rubber and resinous plastic compositions to produce closedcell sponges.  In examples: (1) a mixture of butadiene-styrene copolymers, hydrated calcium silicate, soft clay, benzothiazyl disulphide, di-orthotolylguanidine, sulphur, stearic acid, zinc oxide and naphthalene-1 : 5-disulphonyl hydrazide are mixed and cured in a mould to produce a sponge composition; (2) a chloroprene polymer containing thiuram compounds, stearic acid, benzothiazyl disulphide, silica and naphthalene - 1 : 5 - disulphonyl hydrazide are mixed and cured as in (1); (3) polyvinyl chloride, dioctyl phthalate, barium cadmium laurate and naphthalene - 1 : 5 - disulphonyl hydrazide are mixed and cured as in (1).ALSO:Aromatic disulphonyl hydrazides are prepared by mixing an aromatic disulphonyl chloride with a dilute aqueous solution of hydrazine, allowing the mixture to react at a temperature below the decomposition temperature of the required disulphonyl hydrazide, adding a strong base (as defined below) to the mixture to neutralize the hydrochloric acid formed during the reaction, and separating the resultant aromatic disulphonyl hydrazide, the reaction being allowed to continue until substantially all the free hydrazine has reacted before the strong base is added, the strong base freeing the hydrazine from the hydrazine hydrochloride formed during the reaction for further reaction with unreacted aromatic disullhonyl chloride and being added slowly so that a yield of at least 90 per cent is obtained.  The "strong base" is defined as an alkali or alkaline earth metal hydroxide.  The preferred product is naphthalene - 1 : 5 - disulphonyl hydrazide which is used as a blowing agent in natural and synthetic rubbers and in resinous plastics (see Groups IV (a) and V). It is preferably made from naphthalene-1 : 5-disulphonyl chloride obtained by the process described in Specification 802,654.  In an example, naphthalene-1 : 5-disulphonyl chloride is slowly added to an aqueous solution of hydrazine and sodium hydroxide solution is added slowly after one hour, the mixture being stirred for three hours and the naphthalene-1 : 5-disulphonyl hydrazide obtained by filtration.ALSO:Naphthalene-1 : 5-disulphonyl hydrazide, prepared by reacting naphthalene-1 : 5-disulphonyl chloride with hedrazine (see Group IV(b)), is used as a blowing agent in rubber and resinous compositions to produce closed-cell sponges.
Patent GB-1371413-A (GB)
Title: High speed analogue-to-digital converter
IPC: H03M1/00
Filed: 1972-08-07
Abstract: 1371413 Analogue to digital converter SINGER CO 7 Aug 1972 [7 Oct 1971] 36743/72 Heading G4H In an analogue to digital converter the analogue input is first converted to an N-bit parallel digital signal is which each bit has equal weight (thermometer coding). This signal is then both converted to binary and stored in part of a register and converted back to analogue and subtracted from the input signal. The difference may then be subjected to the same procedure. As shown, the analogue input is fed to a sample and hold amplifier 10. The signal is fed to A/D converter #1 which comprises a plurality of comparators each with a different reference voltage. The output, thermometer coded signal is converted to binary and, fed into the first 3 stages of 9 bit counter 22. The digital signal from the converter is also converted back to analogue using reference voltage source 16 and is applied to resistor R which subtracts it from the input voltage. The difference is fed to a second analogue to digital converter #2 of identical construction to #1, the output is decoded and entered into the middle 3 stages of register 22 and the signal is reconverted to analogue and applied to resistor R<SP>1</SP> where it is subtracted from four times the difference input to the second stage. This second difference signal is converted to a digital value in #3, converted to binary and entered into the last 3 stages of register 22. Register 22 thus operates to add the contents of stage 7 to stages 1 to 6 and to transfer the result to 8 bit output register 24. The sequence of events is controlled by delay line timer 14. The system is said to provide very fast (50 nanosecond) conversion.
Patent GB-449324-A (GB)
Title: Improvements in parachute packs for aviators
IPC: B64D17/52
Filed: 1934-12-21
Abstract: 449,324. Parachute-packs. G. Q. PARACHUTE CO., Ltd., QUILTER, R. C., and GREGORY, J., 17, Stoke Road, Guildford, Surrey. Dec. 21, 1934, Nos. 36745/34 and 15154/35. [Class 4] In a parachute-pack in which a cone or cones co-operate with eyelets on closure flaps of the pack to hold the latter closed, the cone or cones are attached to the base of the pack as distinct from one of the closure flaps. In one form, the pack comprises two rectangular spring frames 10 sewn between two layers of fabric constituting the base of the pack. Upstanding cones 12, 13 are provided on the base and tapes 14, 15 allow of packing the parachute as described in Specification 405,693. The parachute is packed first on one side of the cones and then on the other, and sides flaps 16, 17 and top and bottom flaps 18, 19 are then folded over and are secured by a locking-wire after eyelets have been passed over the cones. Corner tabs 69 are provided for tucking in at the corners of the pack and the harness straps pass through slots 20. In a modification, two rows of cones 22, 23 are provided and the pack is closed by side flaps 24, 25, flaps 30, 31 sewn to the base along the line 32, top end flaps 36, 37 and a bottom end flap 33. Corner tabs 70 are provided. In a further modification, a seat pack is formed by a rigid frame 41 situated in an envelope sealed by lacing 44* forming the base of the pack and includes a single cone 42 arranged to co-operate with eyelets on the closure flaps 56, 156, 58, 158. The cone is mounted on an elastic loop 49, its lower end is flanged at 51 and it is passed through an eyelet 53 secured to the base by webbing strips 54, 55. The flap 158 is provided with a tab 59 which is folded over the rip-cord and secured by press studs 60, 61. Corner tabs 62 are provided. Straps and buckles facilitate attachment to the harness and elastics are provided to assist the flaps in opening. Specification 449,325, [Group VII], also is referred to.
Patent GB-1452104-A (GB)
Title: Device for supplying medicaments
IPC: A61M5/155
Filed: 1973-08-02
Abstract: 1452104 Implantable surgical pump SIEMENS AG 2 Aug 1973 [10 Aug 1972] 36828/73 Heading A5R [Also in Divisions C7, F1 and H1] Apparatus for supplying medicaments or the like to a human or animal body comprises a container providing storage space for a medicament and having an outlet for the passage of medicament from the container to the body; a variable-volume vessel arranged so that increase in its volume reduces the storage space of the container, thereby causing medicament to pass out of the container via the outlet; and electrical means operable to promote an increase in the quantity of fluid in the vessel to increase its volume. The electrical means may comprise electro-osmosis or electrolysis devices. A housing 1 is made of, or covered by, a material impervious to liquid and compatible with body tissue, e.g. epoxy resin. The interior of the housing is divided into chambers, 3, 4 by a liquid-impervious, elastic membrane 2. Preferably the membrane 2 and the inner surface of chamber 3 are metallised. Housing 1 is implanted or carried outside the body and chambers 3, 4 are filled by an injection needle, which may be passed through the skin into tapered bores 25, 26 with valves 27, 28 respectively. To increase the volume of chamber 4, a window is formed in the wall which is closed by an electrically chargeable membrane 9 sandwiched between electrodes 10, 11 which establish an electric field through membrane 9, so that water and body fluid pass through the membrane into chamber 4. Membrane 2 is displaced so that medicament is forced slowly and continuously out of chamber 3, through a tube 6, and out through a porous plug 7 at a point where the medicament is required. Electrode 11 is shielded by a tissue-compatible membrane 12. Current is supplied by a battery 13 situated outside the body. The anode may be zinc, cadmium, aluminium or glucose, and the cathode may be silver/silver chloride or oxygen/carbon electrode. When a glucose/oxygen electrode combination is used for the supply of insulin for a diabetic patient, the current between the electrodes depends on the glucose content of the patient's body tissue, and the system may be made self-regulating A body value influenced by the medicament may control the discharge of medicament. In a modification, chamber (4), Fig. 3, not shown, is constructed with a bellows which is expanded by the generation of gas electrolytically and thus forces medicament out of the chamber 3. Reference has been directed by the comptroller to Specification 1345764.