Compare the device from Syria, last month at this link: http://cdn.theatlantic.com/static/infocus/syria022013/s27_41627145.jpg
with this IED from 1630:
Ok, so the Syrian rebel one hasn’t actually got wheels on, but the axles are there. This design was also used in Dublin in 1803.
Would that be a something akin to a Panjandrum? http://en.wikipedia.org/wiki/Panjandrum