Cyclic Action Bipedal Electric Railway by W. P. Holland
Model Maker January 1956
The problem in view this month is that of penetrating dense scrub country – solved by taking big steps: indeed, when this machine throws its track nonchalantly over its left shoulder it fairly stamps its way through the offending greenery. You will see from the cycle of operation the general principle; the car runs the length of the rail, and, running past the front pylon, upsets the balance of the track unit, causing it to swing up and over, the rear end now becoming the front: and landing on the pylon again ready for the car to proceed once more.
If you want to emulate the Scots and try tossing the "Caber".
Click on these images below for a high-res version of the complete article:
and 
Thanks to David Buckley in providing the material and idea for this post.
For other Walking models by W. Peter Holland, see my other posts here.
For a similar concept, see Prof. Katsyu's Walking-beam model.