An improved method or process of and apparatus for the lixiviation of various materials.

  • La société anonyme des parfums naturuels de Cannes.
Date:
1890
Catalogue details

Licence: Public Domain Mark

Credit: An improved method or process of and apparatus for the lixiviation of various materials. Source: Wellcome Collection.

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    N° 18,528 A.D. 1880 Date of Application, 19th Nnv., 1889 Complete Specification Left, 9th Aug., 1890—Accented, 13th Sept, 1890 PROVISIONAL SPECIFICATION. [Communicated from abroad bv La So iet£ Anonyme des Parfums Naturuels t>e Cannes, of 95, Boulevard Beaumarchais, Paris, France.] An Improved Method or Process of and Apparatus for the Lixiviation of Various Materials. I, Henry Harris Lake of the firm of Haseltine, Lake & Co., Patent Agents, Southampton Buildings, in the County of Middlesex, do hereby declare the nature of this invention to be as follows :— This invention relates to improvements in the method or process of and apparatus for 5 the lixiviation of various materials described in the Specification No. 10280 dated 24th J une 1889, and has for its object to obviate the inconveniences hereinafter set tortli. In order to render the said invention better understood 1 will proceed to describe the same with reference to a battery or series of extractors arranged for the lixiviation of 10 various materials. Suppose for example a moment in the course of an operation when only six extractors are in connection the other extractors of the battery or series being disconnected for charging, discharging purging or other purposes or when the solvent is to be conveyed simultaneously from the first, third and fifth to the second, fourth and sixth extractors. Through the medium of the operating device the second, fourth 15 and sixth extractors are put in communication with the discharge pipe for the gas and the first, third and fifth extractors with the reservoir for the com [tressed gas the solvent commencing to pass simultaneously through the circulating pipe from the first, third and fifth extractors to the second, fourth and sixth extractors. If then through any cause such as when the extractors contain unequal quantities of 20 material, the outflow of the solvent does not lake place at a uniform velocity in all the apparatus, this velocity being for instance greater between the first and second apparatus than between the third and fourth, and the fifth and sixth apparatus, the compressed gas, after all the liquid contained in the first extractor has passed into the second extractor will tend to escape through the latter, so that, for the 2-> operation to pursue its normal course, it is necessary to hasten the interruption of the communication between the first and second apparatus then between the third and fourth and next between the fifth and sixth apparatus. In case the velocity of outflowing solvent should happen to be uniform in all the apparatus the first, third and fifth will be empty at the same time and the compressed gas 80 will tend to escape at the same time through the second, fourth and sixth apparatus. Now in order that no irregularities of anv kind shall occur in the operation it will be needful to interrupt promptly and simultaneously the communication between the first and second, the third and fourth and the fifth and sixth apparatus. In the first as well as in the second case it will be conducive to the proper 85 operation of the apparatus to close the communications at an opportune moment, that is to say, the precise moment when the whole quantity of the solvent has just passed from one apparatus into the apparatus connected therewith, the latter being thus filled without permitting the introduction of gas into the same. As this operation is of a delicate nature it is not advisable that its performance should 40 more or less depend upon the vigilance of a workman. Under these circumstances I dispense with the manual labour and effect the afore¬ said operation automatically. For this purpose each of the above mentioned extractors is provided either internally or externally according to circumstances with a float having a valve con- 45 nected with it. hen this automatic closing device is arranged in the interior of the extractor [Price 8rt.]