Describes the new design of tower and derails; and reduction of the storage battery from 400 to 160 ampere-hours capacity. (1000 w.) (No. 54649)
Rock Island interlocking plant at Joliet
Ry Age Gaz
1914
Ills.
Article (Journal)
English
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Engineering Index Backfile | 1914
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Engineering Index Backfile | 1947
Elgin, Joliet and eastern installs electric interlocking at drawbridge
Engineering Index Backfile | 1934
Automatic interlocking on rock island
Engineering Index Backfile | 1937
Chicago and Joliet Interurban Railway
Engineering Index Backfile | 1902
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