Engine bed (GSC)
Re: Engine bed (GSC)
Did you read LivingLegend's post of a few years ago about his contacts with GSC;
http://www.chaski.org/homemachinist/vie ... 278#p98303
http://www.chaski.org/homemachinist/vie ... 278#p98303
Re: Engine bed (GSC)
That GSC loco bed in Locomotive Cyclopedia issue 1947 on page 8-608 is I'm 99% sure a Niagara bed. I recently finished 3D modelling it and it looks identical. In the image the pilot beam ends have been cut off to bore the cylinders.
Re: Engine bed (GSC)
That GSC bed photo is a "stock" photo and has been used several times in railway histories (one I have is by Richard Prince) to represent an example of the cast steel frames being used in their locomotives.
GWRdriver
Nashville TN
Nashville TN
Re: Engine bed (GSC)
I am curious as to the purpose of the concave features on the left and right side of the pilot beam on most? cast steel engine beds.
Re: Engine bed (GSC)
Poling Pockets, if I understand your question.
~RN
~RN
Re: Engine bed (GSC)
I agree about the poling pocket explanation, although the idea of using a push pole with a 4-8-4 or 2-8-4 seems preposterous!
Dan Watson
Chattanooga, TN
Chattanooga, TN
-
- Posts: 1572
- Joined: Thu Apr 26, 2012 10:15 am
- Location: Tennessee, USA
Re: Engine bed (GSC)
They were only used to move one or two cars on an adjacent track like in a yard where it would be flat, or to push something up into a siding. Like you, I wonder why it would be on a 4-8-4, but they were apparently on every locomotive. Even some early diesels had them.
A short video showing the practice. https://www.youtube.com/watch?v=CUb8PeeT2WI
I believe the entire practice of polling was outlawed around 1970. Of course, when they started doing this probably about 150+ years ago, the typical loaded car probably weighed about 1/3rd of typical loaded car today.
A short video showing the practice. https://www.youtube.com/watch?v=CUb8PeeT2WI
I believe the entire practice of polling was outlawed around 1970. Of course, when they started doing this probably about 150+ years ago, the typical loaded car probably weighed about 1/3rd of typical loaded car today.
-
- Posts: 567
- Joined: Wed Jan 07, 2004 8:04 am
- Location: Princeton, NJ
Re: Engine bed (GSC)
The link for:
"Jim Kreider’s Berkshire Memoirs"
Seems to be broken, can anyone provide a working link, I'd like to read how he dealt with the cast bed.
"Jim Kreider’s Berkshire Memoirs"
Seems to be broken, can anyone provide a working link, I'd like to read how he dealt with the cast bed.