Saving of $4300 per year is said to have been brought about as result of removing small interlocking plant at Boone bridge on Chicago and Northwestern and substitute of automatic features without eliminating any of safety factors or changing operating conditions.
A special circuit saves money
Ry. Signal Engr
Railway Signal Engineer ; 13 , n 2
1920
2 pages
3 Figs.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Online Contents | 2004
|Engineering Index Backfile | 1949
Engineering Index Backfile | 1959
Engineering Index Backfile | 1950
MACHINERY MATTERS - Automated controls saves money
Online Contents | 2006