International Library of Technology · Scranton, International Textbook Co. · leaf 304
Fig. 1048. Fig. 1048. This zinc is cast with a conical lug C on the top,and a corresponding cavity in the under side of the zinc (see Fig. 1049). When the zinc isnearly consumed, it is removed fromthe support B^ and the lug (7 insertedin the cavity of a new zinc, which isthen put in place in the…
Electrical engineering
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