Gidday Jack,
The ODK site being the size it is I would not expect anyone could remember
every image.

I find the searchability on ODK is one of the easiest.

Yes the friction drive is a very old drive system now,I have seen images of
vehicles in about 1904 with the disc and wheel type of friction drive.

I was looking at the Snapper selfdrive images and it reminded me I have an
Ariens selfdrive walk behind mower with the disc and wheel friction drive.

I have a few selfdrive mowers I guess but I never use them,happy to push
a mower around in the sunshine and get a little exercise at the same time.

Thanks for your view on the Mobilco and Ariens Emperor.

I think this patent 1904 was the first to use an aluminium disc.

Regards Max.

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