Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 112
leaden box or a lead-lined wood boxcontaining an accumulator. When the acidin the box is siphoned ofi, and the plugremoved, the deposit from the plates, whichhas accumulated on the bottom of the box,can be washed out of the hole, into whichthe plug is afterwards returned. See Ac-cumulator. Plug… … Hog Dial conical plug in a hole drilled partly in thecentral contact and partly in the separateouter contact. Nine resistance coils have each one endconnected to one of the contacts, and theother end is taken to a common connectionwhich is also served from the tenth no re-sistance contact, by a…
Electrical engineering
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