#1405: Twistlid

Today’s invention is a new form of replaceable roof for a convertible car.

Instead of being stacked in the boot and requiring complicated mechanics to install, this design has bonnet and roof profiles identical. When driving open-topped, the two surfaces mate exactly.

When the weather turns, a pole in the middle of the windscreen lifts the roof away from the underbonnet, rotates it about a near-vertical axis and repositions it facing backwards over the passenger compartment.

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