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Author: Horace Wadsworth Gillett
Publisher:
ISBN:
Category : Brass
Languages : en
Pages : 392
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Book Description
Author: Horace Wadsworth Gillett
Publisher:
ISBN:
Category : Brass
Languages : en
Pages : 392
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Book Description
Author: Horace Wadsworth Gillett
Publisher: Rarebooksclub.com
ISBN: 9781230111551
Category :
Languages : en
Pages : 138
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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. 1922 edition. Excerpt: ...the latter being an impurity arising from the use of scrap hard lead as a part of the charge in the making of the bearings. Any lead to be added to the charge is not put into the furnace but is added in the ladle. ' The metal losses on the whole year's operation of the Snyder and Rennerfelt furnaces together, calculated on an inventory basis, were somewhat lower than those found in the tests, and though the Bennerfelts are conceded to give somewhat lower metal losses than the Snyders, thus reducing the figures of metal loss when the results of both types of furnace are lumped, it is doubted whether this diiference is enough to give the inventory figure if the average loss with the Snyders was as great as indicated by the tests. It therefore seems probable that the net loss for the Snyders is between 3 and 4 per cent rather than above 4 per cent. The fact that lead may be volatilized from copper by a direct arc is utilized by Hill and Luckey"1 for rapid determination of the lead content of copper. They play a 220-volt arc 0.5 cm. long, at 10 amperes, on 0.4 gram of copper, observe the arc spectrum through a spectroscope, and record the time required for the lead lines to disappear. This time is proportional to the lead content of the copper. In two minutes 0.016 per cent lead disappears, and in eight minutes 0.216 per cent. It is not surprising then that a direct arc playing on an alloy with, say, 15 per cent lead should cause a distinct loss of lead. According to figures from the Chicago Bearing Metals Co., in 49 working days (two shifts of nine and one-half hours each) in December, 1917, and January, 1918, the two Snyder furnaces together melted 2,600,000 pounds, or about 13% heats of one ton each per furnace per 19-hour...
Author:
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ISBN:
Category : Fuel
Languages : en
Pages : 686
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Category : Business
Languages : en
Pages : 1844
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Category : Mines and mineral resources
Languages : en
Pages : 590
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Author: H. W. Gillett
Publisher: Forgotten Books
ISBN: 9780331835809
Category : Technology & Engineering
Languages : en
Pages : 1062
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Excerpt from Electric Brass Furnace Practice The years 1905 to 1910 may be termed the purely theoretical period of the development of the electric brass furnace, though the Conley furnace was tried out experimentally about 1910 and a few heats were made in an induction furnace.' About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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: Horace Wadsworth Gillett
Publisher:
ISBN:
Category : Steel
Languages : en
Pages : 722
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Author: United States. Bureau of Mines
Publisher:
ISBN:
Category :
Languages : en
Pages : 1002
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Author: Horace Wadsworth Gillett
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages : 1118
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Author:
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ISBN:
Category : Chemistry
Languages : en
Pages : 1716
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