Getting Gold: a Practical Treatise for Prospectors, Miners And Students
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In our eReader you can find the full English version of the book. Read Getting Gold: a Practical Treatise for Prospectors, Miners And Students Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Getting Gold: a Practical Treatise for Prospectors, Miners And Students
What reading level is Getting Gold: a Practical Treatise for Prospectors, Miners And Students book?
To quickly assess the difficulty of the text, read a short excerpt:
Ores containingmuch sulphur virtually calcine themselves. I have seen this appliancedoing good work. The difficulties appeared to be principally mechanical.
There are other furnaces which work with outside heat, but I have notseen them in action.
"C. "--SHAFT TYPE OF FURNACE In one form of this furnace, instead of allowing the ore to descend ina direct clear fall the descent is impeded by inclined planes placed atdifferent levels in the height of the shaft, the ore descending from oneplane to t...he other.
_The Stetefeldt Shaft Furnace. _--Although very expensive in first cost, has many advantages. No motive power is required and the structure ofthe furnace is of a durable character. Its disadvantages are:--Wantof control, and the occasionally imperfect character of the roastingoriginating therefrom.
Three sizes of Stetefeldt's furnaces are constructed: The largest will roast from 40 to 80 tons per diem.
The intermediate will roast from 20 to 40 tons per diem.
The smallest will roast from 10 to 20 tons per diem.
What to read after Getting Gold: a Practical Treatise for Prospectors, Miners And Students?
You can find similar books in the "Read Also" column, or choose other free books by Johnson Joseph Colin Frances to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Ores containingmuch sulphur virtually calcine themselves. I have seen this appliancedoing good work. The difficulties appeared to be principally mechanical.
There are other furnaces which work with outside heat, but I have notseen them in action.
"C. "--SHAFT TYPE OF FURNACE In one form of this furnace, instead of allowing the ore to descend ina direct clear fall the descent is impeded by inclined planes placed atdifferent levels in the height of the shaft, the ore descending from oneplane to t...he other.
_The Stetefeldt Shaft Furnace. _--Although very expensive in first cost, has many advantages. No motive power is required and the structure ofthe furnace is of a durable character. Its disadvantages are:--Wantof control, and the occasionally imperfect character of the roastingoriginating therefrom.
Three sizes of Stetefeldt's furnaces are constructed: The largest will roast from 40 to 80 tons per diem.
The intermediate will roast from 20 to 40 tons per diem.
The smallest will roast from 10 to 20 tons per diem.
What to read after Getting Gold: a Practical Treatise for Prospectors, Miners And Students?
You can find similar books in the "Read Also" column, or choose other free books by Johnson Joseph Colin Frances to read onlineMoreLess
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