Feet around a wheelSourced
An old wheel design added a ring of stepping pads
Bramah Joseph Diplock’s pedrail wheel carried a series of pivoting feet around its rim. The pads could adapt to uneven ground and spread the vehicle’s pressure. It combined a rotating wheel with ground-contact elements resembling steps.
The wheel acquired a way to put its feet down.
Summary / translation: Unbubly · CC BY-SA 4.0
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Pedrail wheel · Wikimedia contributors
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Reviewed: 2026-10-05