baber/WOPTO huggingface dataset:
Patent GB-855116-A (GB)
Title: Improvements in or relating to extractive distillation processes
IPC: B01D3/40
Filed: 1959-06-15
Abstract: <PICT:0855116/III/1> Hydrocarbon mixtures are separated by an extractive distillation process in which they are contacted with a solvent in a distillation zone to produce a raffinate phase and an extract phase, the raffinate phase is rectified to reduce its solvent content and is then condensed, a part of the condensate is refluxed for admixture with solvent before the entry of the latter into the distillation zone, and another part is refluxed to the top of the rectification zone.  In an example, a C4 feedstock containing butanes and a molar proportion of 50 to 55% butenes is fed at about 66 DEG C. as a vapour or liquid just below its boiling point into a column 12 at 10, and an aqueous acetonitrile solvent in a solvent: feed ratio of 9:1 and containing 15% by weight water is fed at about 88 DEG C. from line 16 into the column at a point between the distillation zone 14 and rectification zone 15.  A reboiler 17 heats the column which is maintained at a pressure of about 7 atmospheres and a temperature of about 60 DEG C. The liquid solvent extracts the butene from its admixture with butane by downward flow countercurrent to the hydrocarbon stream, to form a solvent extract phase which is removed by line 19 to a stripping tower 20, from which butene is discharged by line 23 and stripped solvent is returned to the column 12.  The raffinate phase is rectified in zone 15 by plates sufficient in number, e.g. 3 to 5, to separate much of the solvent from the butane, after which the raffinate is condensed at 24 and allowed to separate at 28 into an upper hydrocarbon-rich layer and lower water-rich layer.  The latter is discharged at 40 for further processing while the former is discharged at 30 into lines 33 and 34.  Reflux line 33 is fed into solvent inlet line 16 to give a reflux: solvent ratio of about 3.4:1, and line 34 is split into a butane product line 38 which is further processed, and a second reflux line 36 which feeds into the rectification zone 15.  Line 33 carries between 50% and 85% of the total reflux.  Other solvents, e.g. aniline, furfural, phenol, nitrobenzene or chlorex (dichloroethyl ether), may be employed.
Patent GB-731805-A (GB)
Title: A recording and reproducing apparatus using tape or wire-shaped record carriers
IPC: G11B15/43
Filed: 1951-08-29
Abstract: 731,805. Winding and unwinding wire. LICENTIA PATENT - VERWALTUNGSGES. Aug. 29, 1951 [March 8, 1949], No. 20434/51. Drawings to Specification. Class 120(2). [Also in Groups XVI, XXXIV and XXXVIII] A recording and reproducing apparatus, e.g. sound recording and reproducing, comprises a supply reel, a driven take-up reel, and a driving mechanism for a tape or wire record carrier, and is characterized in that the supply reel is coupled with an electric motor which drives the supply reel for the rewinding operation and is rotated by the uncoiling record carrier during recording or reproducing, the motor being so constructed as to act as a brake, when rotated by the record carrier, in such a manner that the braking torque varies in dependence on the rotary speed of the supply reel in order that the tension of the record carrier remains constant. For this purpose, the motor may have an elliptical rotary field by providing different numbers of ampere-turns for the individual windings, such as by inserting a resistance which may be switched into and out of one part of the winding. Alternatively, two motors may be coupled to a common driving shaft, one motor having a circular rotary field and the other an alternating field, such that the sum of the torque characteristics is substantially hyperbolic. Since a high speed is desirable when rewinding a pole-changing motor may be used, such that, e.g., a four-pole winding is used during winding and an eight-pole winding is used during unwinding.
Patent GB-668614-A (GB)
Title: Improvements in or relating to foldable baby carriages transformable into child's push chairs
IPC: B62B9/18
Filed: 1950-08-17
Abstract: 668,614. Collapsable vehicles. BERTOLINI, F. Aug. 17, 1950 [Sept. 20, 1949], No. 20457/50. Class 108(i) A collapsable perambulator comprises rigid sides A, B, spaced apart by a base C hinged at 46 to the side B and connected to the side A by a plate or arms 48. The base C is hollow and accommodates flexible sheets 40 which engage the grooves 44 to provied front and rear covers for the perambulator. The rear part 30 of the base C may be hinged downwardly and the front part 32 hinged upwardly to form a chair or seat having an adjustable back.
Patent GB-1011464-A (GB)
Title: Motor vehicle seat
Inventor: THORPE REGINALD PETER
IPC: B60N2/23
Filed: 1963-05-23
Abstract: 1,011,464. Seats. FORD MOTOR CO. Ltd. May 15, 1964 [May 23, 1963], No. 20559/63. Heading A4J. In a seat frame a U-shaped backrest frame 1 is angularly adjustable relative to a U-shaped seat frame 3 having up-turned ends to which the frame 1 is pivoted at 9, an extension 5 of the frame 1 projecting before the pivot 9 and co-operating parts 19, 15 of a screw-adjustment mechanism are mounted on the extension 5 and frame 3 respectively.
Patent GB-842806-A (GB)
Title: Improvements in or relating to the treatment of blood
IPC: A23J3/34
Filed: 1958-06-26
Abstract: Protein degradation products are prepared by contacting an aqueous solution of blood or the haemoglobin fraction thereof with an antienzyme precipitant consisting of an alum solution or an aluminium salt solution to precipitate catalase and enzyme inhibitors present in the blood, separating the precipitated solids from the supernatant solution which contains soluble blood proteins, and subjecting the blood proteins in the solution to the action of a proteolytic enzyme under conditions of pH and temperature favourable to enzymic hydrolysis.  The pH of the solution of blood may be adjusted to between 4 and 6 prior to the precipitation of the catalase and enzyme inhibitors and the pH of the supernatant solution may be adjusted to approximately 7,4 e.g. with sodium bicarbonate.  Specified aluminium salts are aluminium sulphate and sodium and potassium aluminium sulphate. Specified enzymes are trypsin, chymotrypsin, pancreatin, erepsin and pepsin.  A bactericidal agent e.g. chloroform, thymol, acetone, toluene, chlorobutanol and sodium benzoate, may be present in the supernatant solution during the enzymatic hydrolysis.  The solution containing the proteolytic enzyme may be maintained at a temperature of approximately 37 DEG C. until hydrolysis is complete, and the pH of the solution containing the soluble blood protein hydroysate may be adjusted to lesss than 5 to yield amino acids.
Patent GB-478597-A (GB)
Title: Improvements in or relating to record card controlled statistical machines
Filed: 1936-07-25
Abstract: 478,597. Actuation of switches. THOMAS, A. July 25, 1936, No. 20599. [Class 38 (v)] [Also in Groups XIX and XVI] Means are provided for stopping a recordcard-controlled statistical machine if there is no card at the printing station. At the latter a pin 105, Fig. 2, beneath the card plate 106, Fig. 3 (not shown) is connected by linkage 107, 111, 113, 114, 117 to a latch 119, Figs. 2 and 7, controlling the switch 131 for the motor. A spring tends to pull pin 105 upwards and rock the bell crank 113, 114 clockwise. A cam 120 and roller 124 control a lever 121 pivoted at 122 and having a pin 123 underlying the arm 113. Normally, cam 120 holds the lever 121 up and the pin 105 down. Once each cycle, roller 124 drops into the cam recess and link 111 is allowed to move down to permit the pin 105 to rise. If no card is present the pin 105, link 111, and bell crank 113, 114 will move fully but if a card is present, the pin is arrested and the bell crank only moves partly. Slot 116 connecting the arm 114 and link 117 is such that if a card is present, the crank does not move enough to pull the link 117 but if no card is present, latch 119 is rocked to the left. Fig. 7 shows the position when the machine is running. Arm 127 is freely pivoted at 128 and at its end 129 is connected by link 130 to the button of switch 131. A spring 132 tends to pull link 130 down to open the switch. This is normally prevented by the notch in latch 119 holding the arm 127. When there is no card at the printing station and latch 119 is moved to the left, spring 132 opens the switch. To operate the switch manually a lever 133, pivoted at 134 has a pin 142 coacting alternately with fingers 140, 145 pivoted to a plate 135 rocking about the point 128. With the machine running, as shown in Fig. 7, if lever 133 is depressed, finger 140 rocks plate 135 clockwise and a cam edge 137 thereon moves a pin 138 on latch 119 to release the lever 127, 129 whereby the spring 132 opens the switch 131. The next time lever 133 is depressed, its pin 142 depresses the finger 145 to rock plate 135 counterclockwise so that a pin 136 on the plate rocks lever 127, 129 counterclockwise to close the switch. Also, the latch 119 relatches the arm 127.
Patent GB-240420-A (GB)
IPC: C07C331/02
Filed: 1925-08-18
Abstract: Sulphocyano derivatives are obtained by causing a solution containing a product of the reaction between a halide of sulphuric acid and a sulphocyanide to react with an amino or an oxyaryl compound.  In the examples, lead sulphocyanide is added to a solution of sulphuryl chloride in carbon tetrachloride.  On filtering off the lead chloride formed and the excess of sulphocyanide, a solution is obtained which contains a compound which easily decomposes into thiocyanogen and sulphurous acid, and which may be assumed to be sulphuryl sulphocyanide.  This solution reacts with a -naphthol to produce 4-sulphocyano-1-oxynaphthalene; with diphenylamine, the product is 4 : 41-disulphocyano-diphenylamine.ALSO:A solution containing a product of the reaction between a halide of sulphuric acid and a sulphocyanide is used for obtaining sulphocyano derivatives from amines or oxyaryl compounds.  In the examples, lead sulphocyanide is added to a solution of sulphuryl chloride in carbon tetrachloride. On filtering off the lead chloride and the excess of sulphocyanide, a solution is obtained of a compound which easily decomposes into thiocyanogen and sulphurous acid, and which may be assumed to be sulphuryl sulphocyanide.
Patent GB-375102-A (GB)
Title: Improvements in weft stop motions of looms for weaving
IPC: D03D51/34
Filed: 1931-07-21
Abstract: 375,102. Weft feeler arrangements for stopping looms. POLLARD (1923), Ltd., W., Malvern Mills, and WILLIAMS, H., 66, Walton Lane, both in Nelson, Lancashire. July 21, 1931, No. 20794. [Class 142 (iii).] To effect stoppage of a loom on weft exhaustion, a pivotally mounted weighted lever B is provided with a depending arm b to engage the head a<1> of a slidably mounted weft feeler A and is formed with a notch bl to receive a lever C which is pivoted to the weft fork lever E near its fulcrum. The free end of the lever C projects through a slot c in a bracket c<1> adjustably mounted on the weft fork holder and extends across the weft hammer D. During the normal weaving operating the engagement of the feeler with the weft serves to tilt the lever B and raise the lever C, but on weft exhaustion the feeler remains at rest and the lever C is engaged by an additional catch d on the hammer, whereupon the weft fork lever is moved to stop the loom. The position of the arm B can be varied by adjustment of a wedge which is located between the feeler head a<1> and the supporting bracket a.
Patent GB-682028-A (GB)
Title: Improvements in method of and plant for screening moist materials
IPC: B07B1/56
Filed: 1950-08-22
Abstract: 682,028. Sifting moist material. BURSTLEIN, E. M. Aug. 22, 1950 [Sept. 12, 1949], No. 20795/50. Class 117 In sifting moist granular materials by means of sieves which are heated sufficiently to prevent moistening of the sieve surface without drying the material itself, the material is first treated with a small amount of "fluidifying" agent to reduce the surface tension of the moisture of the material. The "fluidifying" agent may be a wetting agent in the proportion 1 to 100,000 by weight or alternatively a mineral oil emulsified in an aqueous medium, with or without a wetting agent, in the proportion ¢ per cent by weight. In either case the agent may be sprayed over the material in a separate mixing apparatus or upstream thereof in, or before entering, a grinding apparatus. As shown, moist material is conveyed to an inclined rotary mixing drum 100 where it is sprayed with heated oil under pressure from a pipe 112, the oil being pumped from a tank 103 through a heater 106, filter 108 and a heater 109. The "wetted" material passes from the drum 100 on to a sieve unit 114 comprising tiered vibratory sieve trays 120 arranged above collecting hoppers 116, 117, 119. Each tray 120 comprises two parallel insulated sieves 122 connected in series by a bar 123 and having their free ends connected to the secondary winding of a transformer 115. The temperature of the sieves is thermostatically controlled at between 30‹C and 50‹C and to ensure even heating along the length of the sieves the heating current is apportioned therealong in relation to the amount of material thereon at any point by means of shunts 127 interconnecting adjacent sieves 122. Where a plurality of superposed sieves 120 are used the currents in the sieves are arranged to produce opposing magnetic fields. The sieves may be heated by a thermostatically controlled gas burner having outlets of diminishing size in the direction of motion of the material. Specifications 665,313 and 680,451 are referred to.
Patent GB-504911-A (GB)
Title: An improved fire lighter
IPC: C10L11/04
Filed: 1937-07-27
Abstract: 504,911. Firelighters. TRIGGS, W. W. (Elkan, F.) July 27, 1937, No. 20803. [Class 60] A firelighter in powder or granular form consists of coal particles mixed with 17-25 per cent naphthalene and 5-13 per cent liquid fuel substances igniting less easily than naphthalene, e.g. heavy and mineral oils, the remainder being coal particles which may be waste coal. U.S.A. Specification 2,076,497 and French Specification 734,086 are referred to.
Patent GB-591058-A (GB)
Title: Synthetic rubber-like material
IPC: C08K5/47
Filed: 1944-10-27
Abstract: Polymers of monethylenic compounds having one or more halogen, hydrocarbon or acyloxy groups and one or more salt forming groups, are cured by heating with a divalent metal oxide or equivalent thereof.  The substituents may be introduced during and/or after polymerization.  Halogens may be introduced by halogenation of polymers, hydrocarbon or acyloxy substituents by polymerizing or co-polymerizing compounds such as ethylene, propylene, isobutylene, styrene, vinyl acetate, chloracetate or propionate. Salt forming groups may be introduced, e.g. by treating polymers with chlorine and sulphur dioxide, or with chlorine and phosphorous oxychloride, or chlorine and phosgene, or with chlorsulphonic acid followed by chlorination, or by chlorination in the presence of sulphur, sulphur halide or sulphur oxychloride followed by steaming.  Such treatment usually takes place in carbon tetrachloride.  Divalent oxides and equivalents specified are litharge, magnesia, zinc oxide, barium oxide, red lead, hydroxides thereof, magnesium adipate, calcium carbonate, and zinc and lead salts of naphthenic, abietic and stearic acids. Optional additions specified are sulphur, agerite alba, stearic acid, rosin, diphenyl guanidine, mercaptobenzothiazole, tetramethyl thiuramdisulphide, dipentamethylene thiuram tetrasulphide, hexamethylene ammonium hexamethylene dithiocarbonate, phenyl beta naphthylamine, carbon, barium sulphate, kaolin, diatomaceous earth, powdered talc, titanium dioxide, calcium sulphate, asphalt, polyisobutylene, factice, pine tar, and ethylene glycol abietate.  The curing may be carried out under pressure. Specifications 481,515, 542,414, 547,101, 576,830 and 582,093 are referred to.
Patent GB-317964-A (GB)
Title: Improvements relating to healds for looms
IPC: D03C9/06
Filed: 1928-07-20
Abstract: 317,964. Norton, G. H., and Hellewell, G. T. July 20, 1928. Healds.-The heald wires or cords D are threaded on rods or other supports C which pass through holes b in the end frames B and are supported at intervals by doubled cords E which are looped around the rods, passed through holes a<3> in the shafts A, and have their ends tied over wires or rods a<1> having cranked ends a<2> and resting in grooves a in the shafts. Series of holes b may be provided to suit healds of different lengths.
Patent GB-936288-A (GB)
Title: Supporting frame for circuit plate
Inventor: CHAMBON JACQUES
IPC: H05K7/14
Filed: 1962-05-31
Abstract: 936,288. Mounting electrical equipment. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 31, 1962 [June 12, 1961], No. 21080/62. Class 37. A supporting flame, Fig. 1, for a plate 9 carrying electrical circuitry (not shown), comprises a member 1 fitted with a multi-terminal connector 6, and two parallel lateral members 2, 3, each having a groove 11 in which the plate 9 slides, and hooks 12, 13 pivotally mounted at 14, 15 in slots in the frame, the hooks being spring-urged into engagement with notches 16, 17 in the plate 9 to lock the latter in position with its contacts 10 coupled to terminals 7 in the connector 6, and each hook comprising a finger 18, 19 which effects withdrawal of the plate 9 when the hooks are rotated about their pivots by movement of ends 22, 23 of the hooks towards one another. Each lateral member 2, 3 comprises an apertured lug 26, Fig. 4, to enable a plurality of frames to be assembled together; in addition, each member 1 has sole-pieces 28 disposed at each end in opposite relation to assist in locating the frames.
Patent GB-1353866-A (GB)
Title: Process for removing lactams
Inventor: DE ROOIJ A H
IPC: C07D223/02
Filed: 1972-05-05
Abstract: 1353866 Ammonia or ammonia salts STAMICARBON NV 5 May 1972 [7 May 1971] 21134/72 Heading C1A [Also in Division C2] Solutions of ammonium sulphate or ammonium hydrogen sulphate in sulphuric acid, e.g. 50-65 wt. per cent solutions resulting from the preparation of lactams by the Beckmann rearrangement, may be further processed by thermal decomposition to recover SO 2  or SO 3 , and NH3; for example SO 3  and NH 3  may be recovered from a concentrated solution of ammonium hydrogen sulphate by evaporating the solution until a melt is obtained, and subsequently by first converting it in a known manner and with the aid of a suitable metal oxide, e.g. ZnO, into ammonia solution and metal sulphate, and by subsequently decomposing the said metal sulphate again into metal oxide and sulphur trioxide at a high temperature.
Patent GB-842408-A (GB)
Title: Garment bagging machine
IPC: B65B25/20
Filed: 1958-07-02
Abstract: 842,408. Cutting webs; seaming. E-Z PACKAGING CORPORATION. July 2, 1958 [Aug. 9, 1957], No. 21202/58. Classes 31 (1) and 42 (1). [Also in Group XVII] A device for forming covers about articles of clothing from tubular plastic film, comprises a platen which presses the film, previously drawn over the article, against fixed members to shape and sever a closed upper end of the cover. The film 122 is drawn from a roller (Fig. 3) over a guide 18 and arranged manually part way over a garment supported on a stand 128. The film passes between a platen 56 (Fig. 9) and sealing and severing members 28, 40. When the platen is pivoted down against the web, the latter is cut transversely and sealed and severed by heated blades along lines corresponding to the shoulders of the garment, a gap 132 (Fig. 11) being left for a garment hanger hook. The cutter consists of a serrated blade 104 (Fig. 9) which is advanced through a slot 59 in the platen by arms 94 carried on the shaft 86 of the platenactuating handles 82 (Fig. 5). The heated blades 48 (Fig. 8) are mounted in holders 42 clamped in the machine frame by screws 38 (Fig. 5). The blades are flanged by resilient guard members 54 which are pressed inwards by pads 63 on the platen. The platen is spring biased to the upper position and is depressed by pulling down one of the handles 82, each handle carrying a roller 80 running in a cam track 78.
Patent GB-1430146-A (GB)
Title: Process and apparatus for the disposal of halogenated organic materials
IPC: C01B7/01
Filed: 1973-05-04
Abstract: 1430146 Hydrohalic acids SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 4 May 1973 21309/73 Heading C1A [Also in Division F4] Halogen acids are recovered from the waste gases of an incinerator 3 in which halogenate organic waste is burnt with fuel and/or a source of hydrogen, e.g. steam, at a temperature above 600‹ C. by passing the gases through a water scrubber 17 and an alkaline scrubber 21. The effluents from the scrubbers may be recycled after cooling. The furnace has an air jacket 12 through which air flows at such a rate as to maintain the metal casing at a temperature between 140-375‹ C., and the furnace may have an inner refractory lining and an outer heat insulating refractory lining. In an example the organic starting material is C 2 Cl 6 .
Patent GB-963880-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: SHILLABEER ROBIN NOEL
IPC: H02K5/128
Filed: 1960-06-17
Abstract: 963,880. Air-gap partitions. ENGLISH ELECTRIC CO. Ltd. June 15, 1961 [June 17, 1960], No. 21348/60. Heading H2A. A dynamo-electric machine of the kind in which cooling fluid is passed through the stator, has the stator bore sealed from the rotor bore by a layer of non-conductive, non-magnetic material intimately bonded with the bore so as to form a cylindrical sleeve. In the motor stator shown, cooling fluid is passed along the interstices between the winding conductors 13 (Fig. 2) in the stator slots. The escape of air into the bore is prevented first by filling the gap between the wedge 15 and the bore with thermosetting resin material 17 and then covering the inside of the bore with a similar material such that the sleeve so formed is intimately bonded to the stator and to the filling 17. The material may be reinforced with glass fibre and may extend at 18a over sleeve extensions 20 which are also bonded to the stator.
Patent GB-381982-A (GB)
Title: Improvements in and relating to carburettors
IPC: F02M1/04
Filed: 1931-07-27
Abstract: 381,982. Spray carburetters. SOC. ANON. SOLEX, 190, Avenue de Neuilly, Neuilly-sur-Seine, France. July 27, 1931, No. 21383. Convention date, June 12. [Class 7 (iii).] A carburetter having a main nozzle and a slow-running nozzle, is provided with an auxiliary carburetting device which delivers on the engine side of the throttle, facilitates starting from cold and is controlled by a valve which has ports communicating with the main mixing chamber and with the outer air. The main nozzle is shown at 3, the slow-running nozzle at 2, and the throttle valve at 6. A fuel well 9 open to atmosphere at 10 is fed through a submerged restricted orifice 8 from the float chamber 1. Depending into this well is a tube 13 having at its lower end a restricted orifice 11 and opening at its upper end into a valve chamber 15. The valve consists of two ported plates 22, 23, adapted to be rotated together, and pressed by a spring 26 against the wall 24 and cover 25 respectively. The plate 22 has an aperture 28 controlling communication through duct 29 with the mixing chamber, and an aperture 27 controlling the outlet of mixture through conduit 16 beyond the throttle. The other plate has apertures 30, 31, Fig. 3, adapted, when aperture 27 is being closed, to register with apertures 32, 33 in the cover to admit air and prevent the formation of a vacuum. The valve chamber is also in permanent communication with the outer air through an orifice 34 in an interchangeable plug 35. The auxiliary carburetter gradually goes out of action as the engine warms up and the viscosity of the oil decreases. In the case of a branched induction conduit, the outlet 16 of the auxiliary carburetter should be disposed symmetrically in relation to the branches. In a modification, the application to a horizontal carburetter is described. Specification 357,310 is referred to.