File:Transactions (1871) (14581338348).jpg

Identifier: transactionsmining35amer (find matches)
Title: Transactions
Year: 1871 (1870s)
Authors: American Institute of Mining, Metallurgical, and Petroleum Engineers
Subjects: Mineral industries
Publisher: New York (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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for the attachment of Bunsen or other burners as re-quired. The iron hot-plate has the form of the letter X, theopen ends being filled by the air baths, the whole makinga rectangular heating surface, having dimensions roughly pro-portional to those of the bottom of the hood, but somewhatsmaller. The two pieces in which the hot plate is cast are heldfirmly together, by bolts, about the exhaust pipe in the centerof the hood. The plate stands on iron legs, and in turn sup-ports the air-baths on three sides by a flange. The two air-baths for one side of the hood are cast in one piece, as shownin section. This section also showrs that the adjacent walls ofthe baths are cast 0.75 in. apart for the insertion of an asbestosboard between them, which extends to the floor of the hoodand prevents the heat from passing too freely from one bath tothe other, and admitting of the easy control of the temperaturein each bath independent of the other. I LBOH \ rORl POB Mil \ii.i RQIC IL OHEMIG I K\ L21
Text Appearing After Image:
Details of Equipment of Hood. 1.).) LABORATORY FOB METALLURGICAL CHEMISTRY. The burner l>v which the froul bath is heated, shown in de-tail in Fig. 1, consists of an iron-pipe, or barrel, an air-mixer,and a neck connecting the two. The burner, which rests hori-Eontally, lias two rows of small perforations for the emission ofthe mixed air and gas. The gas enters the mixer through asmall jet and draws the air into the burner with it. The air inthe rear bath is kept at a constant temperature by steam deliv- Fig. 4. IB -2-M-V-

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