Hi, now that it's getting colder, I hope you've found good use of the large Reddy heater I dropped off a couple years ago.
I came across a Hobbs screwjack, 1 1/2x10. Reseach on line tells me it's rated for 12 ton and the company existed from around 1915 to 1945. So it would fit the rr time period just right. If you can use it, I'll get it to you.