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Title: |
Crossing Over at Division St. "Strong Arm" Tower (see descripton below) in 1964 |
Description: |
Note the rods at the base of the tower going toward and away from the camera and under the tracks. These rods are moved by four foot levers in the tower by the towerman (the job title is leverman) and in turn the rods move/change the signals and move the track switches. Some of the rods travel a long distance to the switch and are hard to pull, thus the term strong-arm plant--strong back too! The tower and its track work are called an interlocking plant meaning the towerman can not set the switches and signals such that one train would run into another. If the towerman sets a route for a train through the plant and then has to set another route for it or take the route from it because another train will move first, he has to run a timer first to assure affected trains have time to stop before he can move set a new route. |
Photo Date: |
6/20/1964 Upload Date: 2/18/2007 6:10:29 PM |
Location: |
Saint Paul, MN |
Author: |
Marty Bernard |
Categories: |
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Locomotives: |
CRIP 434(GP7) |
Views: |
1294 Comments: 1 |
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Title: |
CRI&P GP7 #434 + GP7 #1215 leading w/b train |
Description: |
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Photo Date: |
2/24/1973 Upload Date: 7/28/2020 3:46:22 PM |
Location: |
Saint Paul, MN |
Author: |
Gerard Putz |
Categories: |
Action |
Locomotives: |
CRIP 1215(GP7) CRIP 434(GP7) |
Views: |
472 Comments: 0 |
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