. Electrical instruments and telephones of the Signal corps . ^ inside diam. Sfeel tubing [ j . , r-■ nicke, piaf^d. ri ^^^ 4_. air i f Binding Fhsis for injnsmiIter. FRONT VIEW VERTICAL SECTION Fig. 06. has an adjustable operators transmitter with the usual night-bellcircuit. 156 ELECTRICAL INSTRUMENTS U. S. SIGNAL CORPS. An arrester cabinet providing for an ultimate installation of 20Mason or similar lightning arresters with fnses accompanies thisswitchboard, snfficient cable being provided to reach from the usuallocation of the switchboard to the arrester cabinet usualh^ installedon th
. Electrical instruments and telephones of the Signal corps . ^ inside diam. Sfeel tubing [ j . , r-■ nicke, piaf^d. ri ^^^ 4_. air i f Binding Fhsis for injnsmiIter. FRONT VIEW VERTICAL SECTION Fig. 06. has an adjustable operators transmitter with the usual night-bellcircuit. 156 ELECTRICAL INSTRUMENTS U. S. SIGNAL CORPS. An arrester cabinet providing for an ultimate installation of 20Mason or similar lightning arresters with fnses accompanies thisswitchboard, snfficient cable being provided to reach from the usuallocation of the switchboard to the arrester cabinet usualh^ installedon the wall at the rear of the switchboard. Lock-nut terminals arel^lainly marked: the cross connecting is done in the rear of the
Size: 1380px × 1810px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashingtongovtprin
