. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. s, drawing down the arm ropening the local circuit. The action of the apparatus is as follows,—The main batteries B atthe two terminal stations are prejferably arranged with their negative poles to the line, as shownin Fig 1098. In the normal position of the apparatus these neutralize each other, and there is noattraction between the poles of the magnets r\ and rg of the relay E. If now the key K isdepressed, the battery B at the home station is reversed ; its polarity then coincides with that ofthe batter
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. s, drawing down the arm ropening the local circuit. The action of the apparatus is as follows,—The main batteries B atthe two terminal stations are prejferably arranged with their negative poles to the line, as shownin Fig 1098. In the normal position of the apparatus these neutralize each other, and there is noattraction between the poles of the magnets r\ and rg of the relay E. If now the key K isdepressed, the battery B at the home station is reversed ; its polarity then coincides with that ofthe battery at the distant station, and tlie combined current of both batteries traverses the line,producing a corresponding magnetic effect in the coil r, ; at the same instant the equating ciicuitis closed at k, and the current of the equating battery 6, traverses the other coil r^, giving it anequal and opposite magnetic polarity, in consequence of which the home relay is unaffected by thedepression of the key at the same station. When the key at the remote station is depressed, and
Size: 1639px × 1525px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
