Quote:The first rotor was in a 503 International hydro model. This was told to me by Cam himself. He was one of the first engineers that was involved with the development of the axial flow combine.
This makes sense.In the very latest Case-IH Axial-Flow Combines brochure,on pg. 17,this line caught my attention-"We pioneered rotor development back in the 1960's." So...they were already developing it back then with "503" skin around it.
But the origins of rotary threshing may have started even earlier with.....rotary corn shellers.
We have a book "150 years of International Harvester" by C.H.Wendel-1st pub'd in 1981.On pg. 78 he talks of IH's 1904 purchase of the Keystone Co. They made 2 types of shellers-"Spring" and "Cylinder".I'll quote the paragraph on "Cylinders":
"Cylinder shellers are radically different than spring shellers.Generally,the device consists of a stationary cage,made of heavy iron bars.Within this cage revolves a main shaft to which are secured a series of shelling rings.The action of these rings revolving the ear corn within the cage shells the kernals off the cob."
Does this concept sound familiar? While they didn't call it rotary,it sure sounds like a rotary design and there are many older farmers,my Dad and Uncle-80 & 82 yr.s respectively,included,who will tell you this was rotary threshing's start.
On pg. 81 the author has a pic of the No. 1 cylinder corn sheller intro'd in 1919.This was an engine or tractor driven unit with a capacity of 300 bph,far greater than any spring unit of the day. IH built shellers until 1964. I remember going to a farm machinery auction back in the early '80's and seeing a IH rotary sheller on top of a scrap heap.Dad knew what it was and what a shame that it ended up there!!!!!
Deere also built rotary shellers back in the '30's? thru ? I don't have a Deere book so don't quote or vilify me for what I've said. I have seen pics of a #30 JD sheller but have no info. Perhaps someone with a JD history book could tell us more?
I also forgot to mention Minneapolis Moline also built a rotary corn sheller.There are a lot of these around but little info to be found online about these either.