During the war, IBM made a very interesting gadget called an Odograph which
plotted the position and course of a moving vehicle. It was fitted to jeeps
and trucks. It consisted of a number of boxes of very intricate mechanical
or electromechanical machinery, and its output was on an XY-plotter (or
what looks like one).
I took a couple of photos of one that was on display at last year's Swap
Meet held by the Military Jeep Club of Queensland:
http://home.primus.com.au/alec/ibm_odograph1.jpg
http://home.primus.com.au/alec/ibm_odograph2.jpg
Steve.
steven@phaedra.apana.org.au
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