2015 - Volume #39, Issue #1, Page #5
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British Post Vibrator
Post Vibrator - John Lord built a machine that “vibrates” fenceposts into the ground rather than driving them. It’ll push big wood posts into the ground, pointed or not. The machine consists of a hydraulic vibrator mounted on the outside of a truck tire rim. The tire insulates the loader tractor from the vibration. ..........
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