Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 445
one of those in use,one of the dead wires canimmediately be connected,and thus the necessity forreplacing the entire cableis obviated. Controllers Of thisdescription operate in va-rious ways; in some, assoon as the line circuit isclosed, a solenoid is actu-ated, which cuts out theFig. 19.… … 346
Architecture · Building · Carpentry
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