Rolling Stock Question

This is a long shot, but here goes. I have 1921 Poor’s Manuel of Railroads. In the data of the Missouri, Kansas, and Texas railroad (Katy), under Freight Cars is listed "Combination Coal and Stock, 1584 (quantity, I assume). Anyone know what kind of car this would have been. I grew up on the Katy main line in McAlester, OK, which was the center of what was a robust coal minning area. I was in school 1940 till HS grad 1953 and coal minning was active then but shipped mostly in gons; don’t remember hoppers but there could have been some. Nothing like the Comb description in the Manuel. Anyone have a clue?

Northtowne

Perhaps they simply combined the count of two types of cars for statistical convenience. Rather than imagining a car that carried coal and livestock together. Possibly the road didn’t own a large number of either. Just a thought.

There was a patent applicatation: https://patents.google.com/patent/US1239558

The ‘Bopper’, 1916 edition, although even more bizarre.
I know back in the day stock-cars were sometimes used to transport grain during peak harvest seasons (apparently requiring lots of cleaning and lots of wood coopering to prevent leaks), but coal? Oh well, why not…

Searching around online, I found enough references to the cars that I’m sure they were a specific type of car, not two types lumped together in ledgers. However, I haven’t found a picture or description so I don’t really know what they would have been like.

My guess is that some railroads 100+ years ago found they needed more stock cars in the summer, and more coal-hauling cars in the winter, so built a car that could be converted from one to the other. I know at that time railroads had wood flatcars that could have wood sides and ends added to convert them into gondolas which could haul coal. Perhaps there were gondola cars that could have side extensions added that allowed the cars to haul stock also. (If the livestock is only travelling a short distance, the car wouldn’t have to have a roof.)

Kinda like this coal/coke car:

http://columbusrailroads.com/Ralston%20photos/ralston-030-1907-CH&S.JPG

That’s kinda what I imagined - put a roof on it and it’s good for stock or coal, although it would have to be shovelled out by hand…

Back in the 1970s an elevator operator in northwest Iowa leased some old surplus stock cars, lined them with plywood sheets and used them to ship grain.

Jeff

Thank you tree68; this has to be what is listed on Katy car roster in 1921. Gons and stock cars are listed separately from the comb stock and coal cars.

Northtowne

And if it’s based on a high cube boxcar it is (wait for it)…A Big Bopper!

Ducking and running for cover

For those who don’t get the reference

https://en.wikipedia.org/wiki/The_Big_Bopper

I have a vague memory that the floor either converted into a hopper bottom or was flat with doors like some gondolas

AAR Classes in question

GA Open top car, having fixed sides and ends and drop-bottom, consisting of doors hinged crosswise of car, to dump between rails.

GE Open top car, having fixed sides, drop ends, and drop bottom, consisting of doors hinged crosswise of car to dump between rails.

Modern Bopper car video

https://www.youtube.com/watch?v=jlmyWyI9HT8

I wonder if they tried to operate the movable floors with air instead of hydraulics?

I think I drove through Memphis once… Maybe twice.

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