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Report Volume 21 (Paperback) Loot Price: R599
Discovery Miles 5 990
Report Volume 21 (Paperback): United States Bureau of Industry
Report Volume 21 (Paperback): United States Bureau of Industry

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Report Volume 21 (Paperback)

United States Bureau of Industry

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Loot Price R599 Discovery Miles 5 990

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 Excerpt: ...small for the use of more than one or two fingers. Select a lamp with a handle that is broad, strong, smooth, and firmly attached. The lamp is for use, and it should be built to stand handling. It must be strong in order that it may be convenient. The burner.--The burner is the very important part of an incubator lamp. It should be made with the greatest regard to stabilitjand accuracy. The flat-wick tube is the most common, and, when the burner is properly constructed, it answers every purpose. But many manufacturers are careless about the quality of their burners, and are sending out flimsy and poorly made articles that are difficult to manipulate and are imperfect in action. A little carelessness in selecting a burner has led to the condemnation of many a good incubator. The burner should be made of good material, such as brass or copper, and never of poor material, such as iron or plated tin. The wheel or lever used in raising and lowering the wick must be stout, large enough for its purpose, easy to find, and must turn exactly and easily. Never waste any time upon a burner that does not work promptly and readily, so far as the wick is concerned. If it turns hard, or does not turn to the thirty-second of an inch, it is useless and will cause trouble. The tube holding the wick should be strongly made of material that will not break, spring, or bend, and it should be so adjusted to the size of the wicks furnished with the outfit that the wick can pass up and down freely without pinching or binding. On the other hand, it should not be so large or loose as to allow the escape of gas along the side of the wick. In one case the pinching of the wick will interfere with capillary attraction, and in the other the looseness of the wick will cause an uncertain or ...


Imprint: Rarebooksclub.com
Country of origin: United States
Release date: March 2012
First published: March 2012
Authors: United States Bureau of Industry
Dimensions: 246 x 189 x 13mm (L x W x T)
Format: Paperback - Trade
Pages: 250
ISBN-13: 978-1-130-26835-5
Barcode: 9781130268355
Categories: Books
LSN: 1-130-26835-7

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