Northern Pacific Boxcar Upgrades 1925
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Ray Breyer
PS: just checked the ACF lot list. They built 32,128 replacement steel underframes for a wide variety of customers. Most were for boxcars and gondolas, but the list includes underframes for 6600 reefers and 1262 tank cars. Ray Breyer Elgin, IL
On Saturday, October 1, 2022 at 07:58:57 PM CDT, Ray Breyer via groups.io <rtbsvrr69@...> wrote:
Sure is: jack up the carbody, unbolt the wood sill, slide the prefab steel sill under the car, bolt into place, done. Railroads in the 1920s did this to over 100,000 cars (probably closer to 200-300 thousand, but I haven't counted). Ray Breyer Elgin, IL
On Saturday, October 1, 2022 at 03:52:34 PM CDT, Tim O'Connor <timboconnor@...> wrote:
Rebuilt with steel center sills to replace wooden center sills, wow ! Is that easier than it sounds ? On 10/1/2022 4:04 PM, Hudson Leighton wrote: -- Tim O'Connor Sterling, Massachusetts |
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gary laakso
Really fine pictures, Steve! Thank you for sharing.
Gary Laakso Northwest of Mike Brock
From: main@RealSTMFC.groups.io <main@RealSTMFC.groups.io> On Behalf Of Steve and Barb Hile
Sent: Saturday, October 1, 2022 5:56 PM To: main@RealSTMFC.groups.io Subject: Re: [RealSTMFC] Northern Pacific Boxcar Upgrades 1925
I know that in the 1920’s, the Rock Island “rebuilt” some boxcars with steel center sill assemblies from Bettendorf.
The cars were stripped down to the trucks (which were also refurbished) and entirely new bodies with steel Murphy ends were built on the new underframes.
And as a result. (The 30xxx series number was the series of cars used for the rebuild.)
Steve Hile
From: main@RealSTMFC.groups.io [mailto:main@RealSTMFC.groups.io] On Behalf Of Robert kirkham
I’m not sure how to answer that question Tim. (no one made the youtube video, lol). However, it was done to thousands of cars in the late teens and 1920s on the CPR alone (and i’m sure on a lot of other RRs). Almost all the cars rebuilt in this fashion that i’ve crawled under appear to also incorporate steel Z section cross pieces (not sure what to call them) to support the queen posts, with truss rods remaining in place with the steel centre sill after rebuilding. The photo of the underframe on CP 52850 (almost no remaining paint) shows this. To me that indicates that a lot of the structure was unchanged when the steel c-sills replaced the wood.
A number of rebuilt car series on the CPR remained with wood sheathed ends (and a pair of steel posts up the exterior of the ends for support (see the 3/4 view of 52850 (almost no remaining paint)) Many other rebuilt CPR cars received steel ends (Murphy corrugated and Murphy dreadnaught on the CPR). In some of those situations, such as the 3/4 angle view of CP 197424 attached (well painted but unusual colour), the ends are this unusual combination of Murphy corrugated and a great big old wood end sill.
Rob
On Oct 1, 2022, at 1:52 PM, Tim O'Connor <timboconnor@...> wrote:
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Ray Breyer
Sure is: jack up the carbody, unbolt the wood sill, slide the prefab steel sill under the car, bolt into place, done. Railroads in the 1920s did this to over 100,000 cars (probably closer to 200-300 thousand, but I haven't counted). Ray Breyer Elgin, IL
On Saturday, October 1, 2022 at 03:52:34 PM CDT, Tim O'Connor <timboconnor@...> wrote:
Rebuilt with steel center sills to replace wooden center sills, wow ! Is that easier than it sounds ? On 10/1/2022 4:04 PM, Hudson Leighton wrote: -- Tim O'Connor Sterling, Massachusetts |
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I know that in the 1920’s, the Rock Island “rebuilt” some boxcars with steel center sill assemblies from Bettendorf.
The cars were stripped down to the trucks (which were also refurbished) and entirely new bodies with steel Murphy ends were built on the new underframes.
And as a result. (The 30xxx series number was the series of cars used for the rebuild.)
Steve Hile
From: main@RealSTMFC.groups.io [mailto:main@RealSTMFC.groups.io] On Behalf Of Robert kirkham
Sent: Saturday, October 1, 2022 4:24 PM To: main@realstmfc.groups.io Subject: Re: [RealSTMFC] Northern Pacific Boxcar Upgrades 1925
I’m not sure how to answer that question Tim. (no one made the youtube video, lol). However, it was done to thousands of cars in the late teens and 1920s on the CPR alone (and i’m sure on a lot of other RRs). Almost all the cars rebuilt in this fashion that i’ve crawled under appear to also incorporate steel Z section cross pieces (not sure what to call them) to support the queen posts, with truss rods remaining in place with the steel centre sill after rebuilding. The photo of the underframe on CP 52850 (almost no remaining paint) shows this. To me that indicates that a lot of the structure was unchanged when the steel c-sills replaced the wood.
A number of rebuilt car series on the CPR remained with wood sheathed ends (and a pair of steel posts up the exterior of the ends for support (see the 3/4 view of 52850 (almost no remaining paint)) Many other rebuilt CPR cars received steel ends (Murphy corrugated and Murphy dreadnaught on the CPR). In some of those situations, such as the 3/4 angle view of CP 197424 attached (well painted but unusual colour), the ends are this unusual combination of Murphy corrugated and a great big old wood end sill.
Rob
On Oct 1, 2022, at 1:52 PM, Tim O'Connor <timboconnor@...> wrote:
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lrkdbn
New York Central Lines was a pioneer in the reinforcement of wood cars-they called the steel assembly of steel center sills (with cover plates sometimes top and bottom sometimes only top) steel bolsters and channel or I beam needle beams a "repair steel underframe."and used it on thousands of their older cars from ca. 1912 to the late 20's.as well as some new cars.The end sill was still of wood, even on cars with steel Murphy ends.I believe CPR's setup was very similar.
Larry King |
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gary laakso
Maybe the steel bent 90 degrees that ran the length of the outside bottom of the wood sheathing on both sides of the door.
Gary L:aakso
From: main@RealSTMFC.groups.io <main@RealSTMFC.groups.io> On Behalf Of Hudson Leighton
Sent: Saturday, October 1, 2022 3:53 PM To: main@RealSTMFC.groups.io Subject: Re: [RealSTMFC] Northern Pacific Boxcar Upgrades 1925
What would a "grain tight sheathing angle" be? |
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Robert Heninger
Hudson, The angle runs just under the capacity lettering. |
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Hudson Leighton
What would a "grain tight sheathing angle" be?
-Hudson |
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I’m not sure how to answer that question Tim. (no one made the youtube video, lol). However, it was done to thousands of cars in the late teens and 1920s on the CPR alone (and i’m sure
on a lot of other RRs). Almost all the cars rebuilt in this fashion that i’ve crawled under appear to also incorporate steel Z section cross pieces (not sure what to call them) to support the queen posts, with truss rods remaining in place with the steel
centre sill after rebuilding. The photo of the underframe on CP 52850 (almost no remaining paint) shows this. To me that indicates that a lot of the structure was unchanged when the steel c-sills replaced the wood.
A number of rebuilt car series on the CPR remained with wood sheathed ends (and a pair of steel posts up the exterior of the ends for support (see the 3/4 view of 52850 (almost no remaining paint)) Many other rebuilt CPR cars received steel
ends (Murphy corrugated and Murphy dreadnaught on the CPR). In some of those situations, such as the 3/4 angle view of CP 197424 attached (well painted but unusual colour), the ends are this unusual combination of Murphy corrugated and a great big old wood
end sill.
Rob
On Oct 1, 2022, at 1:52 PM, Tim O'Connor <timboconnor@...> wrote:
Rebuilt with steel center sills to replace wooden center sills, wow ! Is that easier than it sounds ? On 10/1/2022 4:04 PM, Hudson Leighton wrote: Northern Pacific Boxcar Upgrades 1925 -- Tim O'Connor Sterling, Massachusetts 
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Rebuilt with steel center sills to replace wooden center sills, wow ! Is that easier than it sounds ? On 10/1/2022 4:04 PM, Hudson Leighton wrote: Northern Pacific Boxcar Upgrades 1925 --
Tim O'Connor Sterling, Massachusetts |
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Hudson Leighton
Northern Pacific Boxcar Upgrades 1925
-Hudson 
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