The Stamp Milling of Gold Ores
Author | : Thomas Arthur Rickard |
Publisher | : |
Total Pages | : 298 |
Release | : 1897 |
Genre | : Gold |
ISBN | : |
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Author | : Thomas Arthur Rickard |
Publisher | : |
Total Pages | : 298 |
Release | : 1897 |
Genre | : Gold |
ISBN | : |
Author | : Thomas Arthur Rickard |
Publisher | : Franklin Classics Trade Press |
Total Pages | : 294 |
Release | : 2018-10-23 |
Genre | : |
ISBN | : 9780344029318 |
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author | : Thomas Arthur Rickard |
Publisher | : Theclassics.Us |
Total Pages | : 80 |
Release | : 2013-09 |
Genre | : |
ISBN | : 9781230279237 |
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ...it. The blanket washings are very poor. The North Cornish mill is not in the town of Ballarat, though in the mining district of that name, but at Daylesford. The plant consists of 50 stamps, and the rate of drop varies from 70 to 75 per minute, the height of the drop being 8 inches. The depth of discharge or issue is extremely irregular. When starting with new dies or false bottoms the top of the die is approximately level with the bottom of the grating and the depth of discharge is practically nil, but as the dies wear down (they are 4 inches deep) the issue in Near the famous Canadian lead, which yielded so many of the large nuggets. creases to a maximum of a little over 3 inches. The mill crushes 90 long tons per day, or 2,450 tons per month. The amalgamation is effected by methods similar to those described as in use at the Star of the East. Scarcely 11 per cent. of the amalgam obtained comes from the mortar boxes. Much the largest proportion is derived from the skimmings of the wells and in the blanket sands. The latter are treated by Eerdan pans, of which there are six. The tailings from the Berdans go to a Frue vanner for after-treatment. This is a comparatively new mill, the oldest portion being five and the newest two years old. The quantity of ore in sight in the mine is such as to have led to the consideration of a further addition to the number of stamps. The mine has paid large dividends for alongperiod.f Notwithstanding these facts the mill is miserably incomplete. Although very favorably situated and having all the fall required for an automatic arrangement of its parts, it is unprovided with rockbreakers or self-feeders. In the feeding of the 50 stamps there are employed upon each shift 5 men at 30 shillings per week, ..
Author | : Thomas Arthur Rickard |
Publisher | : |
Total Pages | : 260 |
Release | : 1897 |
Genre | : |
ISBN | : |
Author | : T. A. Rickard |
Publisher | : |
Total Pages | : 290 |
Release | : 2017-07-10 |
Genre | : Technology & Engineering |
ISBN | : 9780282872199 |
Excerpt from The Stamp Milling of Gold OresThe matter thus collected is rather a painstaking description of practice than a discussion of the chemistry and mechanics of the stamp-milling process. It Will, therefore, it is believed, be serviceable to those engaged in the actual work of the mill, no less than to the student in the laboratory or lecture room.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author | : Thomas Arthur RICKARD |
Publisher | : |
Total Pages | : |
Release | : 1901 |
Genre | : |
ISBN | : |
Author | : Anonymous |
Publisher | : Nabu Press |
Total Pages | : 288 |
Release | : 2013-12 |
Genre | : |
ISBN | : 9781295395507 |
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Author | : Willard Samuel Morse |
Publisher | : |
Total Pages | : 7 |
Release | : 1895 |
Genre | : Ironwork |
ISBN | : |
Author | : Horatio Whiting |
Publisher | : |
Total Pages | : 122 |
Release | : 1905 |
Genre | : |
ISBN | : |
Author | : Arizona Bureau Mines |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 90 |
Release | : 2016-05-27 |
Genre | : |
ISBN | : 9781533492661 |
Leading mining historian Kerby Jackson introduces us to a classic mining publication on hard rock gold mining. Written in 1932, this hard to find publication includes valuable facts about the handling of ores from gold mines. Included in this short publication is an overview of smelting, milling, amalgamation, gravity stamp milling, the use of retorts, the refining of bullion from retorts, use of ball mills, huntington mills and arrastras, as well as details on cyanidation, gravity concentration and flotation. This publication is a must for anyone looking to develop a small gold mine. Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As such, some type characters and images might suffer from slight imperfections or minor shadows in the page background.