File:Annual report of the Regents (1900) (14592469947).jpg

Identifier: annualreportof5421900newy (find matches)
Title: Annual report of the Regents
Year: 1889 (1880s)
Authors: New York State Museum University of the State of New York. Board of Regents
Subjects: New York State Museum Science
Publisher: Albany : J.B. Lyon, State Printer
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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name of roughhard ^ and serve excellently for use in damp situations and forsewer work. Several types of down-draft kiln are illustrated in the report. Down-draft kilns sometimes have two sets of fireplaces, theone connecting with the bags on the inside of the kiln and the otherleading directly into the interior. The kiln may thus be workedeither as an up or a down-draft, the former being used duringthe water-smoking and the latter during the burning. Continuous kilns. These consist of a series of chambers! separatedby either temporary or permanent walls. The fire is started in thefirst, and as the burning proceeds the heat from the burning cham-ber is conducted through the succeeding ones either through flues inthe wall or pipes connecting the openings in the roof of the kiln. Inthis way, by means of the exhaust heat, the temperature of the suc-ceeding chambers is raised, so that less fuel is required. The heatfrom a buminer chamber can not as a rule be earned safely tlirough o 0) c
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a•abo a a Plate 44 To face page 678

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