A co-worker was doing some Spring cleaning last week clearing out some old filing cabinets, and came across a binder completely full of old photos, some going back to the 40's. There were some really neat ones in there, and I will share more as I get time, but thought I would start off with these. These started off a section of the binder featuring competitive machines, so I'm pretty sure these aren't of a Cat prototype. The others had some notes to go with them, but unfortunately the photos of this tractor did not. The track roller frames and rear end look like an International to me, but I haven't seen pictures of an IH dozer with the cooling system in the back before. Anyone know what it is?

Dave

You would think if it has a rear cooling system that it'd be a Euclid/Terex.

Hi, Dave Tallon.
I have only ever seen one manufacturer other than International make track frames looking like that - ADN/Nord/Acieres du Nord of France from the late 1940s - early 1950s - and they only built one model with that style of track frame, the ADN 130.



The ADN 130 was around D8 2U size and was quite an innovative tractor for its time in many ways. Its big let down, other that parts and service backup, was its transmission. How-wevver, none of the ADNs that I have ever seen had rear-mounted radiators or the square lines of that beast.

Just my 0.02.

The ADN130 ia 6 Roller track frame the pic from dtallon has 7 rollers.

Although the front sure looks like the same design ideas. Could be a different model same manufacturer.

Hi, cohlj2.
I was referring to the general shape of the track frame and the outer track frame bearing - see this photo of a restored TD24 -

The inboard ends of the track frame diagonal braces also show a remarkable similarity to the same parts on an early TD24, as do the inboard external faces of the final drive housings where they attach to the back end of the tractor. (I just had the thought that you can't call it the steering clutch case 'cos they had planetary steering instead of clutch-n-brake.)



I am starting to wonder if it might have been an experimental tractor leading up to the first TD24s.

Just my 0.02.

Hi, Folks.
Take your pick from this list of past tractor manufacturers.

en.wikipedia.org/wiki/List_of_former_tractor_manufacturers

Have fun.

Just my 0.02.

"Deas wrote:

Hi, cohlj2.


I am starting to wonder if it might have been an experimental tractor leading up to the first TD24s.

Just my 0.02.

Deas I wonder if it may have been after the TD 24 and maybe a larger prototype

It looks very modern with that grill and radiator up the back

Paul

Is it armoured?

Hi, MrsMP.
Pre-TD24? Or post-TD24? Or nothing to do with it? The TD24 morphed into the TD24 42 and 'B' series and then to the TD25B and C and later 'incarnations' of same. Once you add blower fans into the mix, there doesn't seem to be much for or against having the radiator leading the charge or 'advancing from the rear'.except that fans are awful noisy and more so the bigger they get - as anyone who has ever operated any of the Euclid 'TC' or 'T-Rex' '82' series dozers can tell you - - - - IF they just happen to hear you ask, that is..

I DO love a mystery.

Just my 0.02.