Jan-8th-2009
Working, Double Curb
A method of working telegraph lines. When a signal is sent the line is
charged. This has to be got rid of, and is an element of retardation. In
double curb working it is disposed of by sending a momentary current
first in the reverse, and then in the same, and finally in the reverse
direction. This is found to reduce the charge to a very low point.
