Rockpicker
Guest
I am glad to see somebody else noticed that too. I can't see any other difference between the old rotor and this new AFX rotor besides the auger flighting.
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Combines Capacity of an 8010IJ
redMN
Guest
They did huhIJ Then why was it until they started building the sts models that they put the rotor in the same way as caseih and have stated in there ads that they hope to eliminate the conventional machine within the next 5 yearsIJ The only rotory style machine that I have no idea when it became produced is New Hollands twin rotor design. IH started in the mid '70's.
redMN
Guest
That I believe would be considerd a modification that John Deere made. They still didn't come up with the axial-flow design or in other words running the cylinder from front to back. That they copied.
Rockpicker
Guest
I don't know the answer to your question but you will have to eat crow unless somebody proves IH started fooling around withe rotaries before 1954. Check out JD Tractors and Equipment Volume 2 1960-1990. They tried everything and had something like 8 different configurations. NH had their rotary in the 70s too. In fact I think they beat IH by 1 or 2 years.
44mac
Guest
You would think that they would have come up with a better design if they had 50 years to fine-tune it. Oh that's right,they had to wait until they could TRY and copy it! Just Kidding!
Rockpicker
Guest
I did a little research and found that NH introduced their TR 70 in 1975 2 years before IH came with their 14 series.
d_a_s
Guest
The point is they copied the auger intake that has given them 20% more capacity.By what you say JD is the only one that copies other designs,but thats not true.I don't care who designs it if someone can make it better then go at it.
George_2
Guest
Read Ralph Baumheckel's book "IH Farm Equipment Product History 1831-1985". It is all in the Axial-Flow chapter (page 343). He states that IH started experimenting in the mid 1950s with a 10 foot cut machine. The ideas were developed well before that as they envisaged the 2MX picker rotors in a 141 combine. Full size laboratory models were constructed in 1962 and secure field test in a 403 combine equipped with an axial flow 24 inch rotor in Arizona occurred in 1964. What is not well known is that the NH twin rotor design came out of the same advanced engineering group. At the time IH did not know which was best, single or dual rotor, so they built both machines. There is even a picture of an IH twin rotor machine doing corn. The twin rotor was more costly and if they could get the single rotor to feed correctly, it would be the better choice for cost driven farmers. It took them a couple of seasons to get the single rotor feeding properly, and at that point (1967) the dual rotor program was abandoned. The twin rotor engineer then went to work for NH and NH continued work on the twin rotor. NH introduced the TR70 in 1975 but the combine was ready for production in 1973. IH had sued NH over their former engineer's role in developing the TR70. They received a modest cash settlement from NH and delayed the introduction of the TR70. So you see the IH and NH axial flow combines came out of the brain trust IH had in the Advanced Engineering group back in the 1950's and 1960's. There are pictures of both the 403 and the 815 with the axial flow rotor in this book. It is an excellent book and well worth buying.
Rockpicker
Guest
I will have to find that book. Sounds interesting.
redMN
Guest
Thanks for the backup. I knew I was somewhat on track just didn't have the resources to back me up.