Another Patent Tailings Machine.

Cromwell Argus, Volume II, Issue 97, 19 September 1871, Page 6

Another Patent Tailings Machine.

(Thames Advertiser.)

We are in receipt of a pamphlet containing plans and description of a triple-action grinder and amalgamator patented by Mr J. C. Stovin, which is stated to be most suitable for the reduction and amalgamation of quartz tailings, iron pyrites, auriferous sand, or alluvial soil. The apparatus consists of a circular pan, divided into two compartments by .an amular ring, the outer compartments to bo used for grinding the several substances requiring that process, and the inner one for amalgamating the precious metals. A full description of the grinding apparatus, the amalgamating apparatus, and also of the mode of working, and the action of the machine in the two processes, is given in the pamphlet. It possesses this advantage, that both processes can be carried on either simultaneously or separately. Grinding can be canned on either by .the wet or the dry process, and the stuff may be reduced to an impalpable powder at the same time that the process of amalgamation is carried on with different material in the inner compartment. No mercury is used in the grinding process, thus avoiding the loss sustained by floured silver ; and in order to make the mercury at the bottom of the pan and on the plates more sensitive, provision is made for the introduction of hot water or steam, as may be found most convenient. It is also stated that the quantity which can be operated on by each machine may be estimated at from half a ton to a ton per hour. The invention is one of considerable promise, and its efficacy will no doubt be thoroughly tested.