What specific mechanical application was R. Tradwell's 1763 British Patent No. 792 primarily intended to improve using coiled springs?

Answer

Hanging coaches

The patent secured by R. Tradwell (or Tredwell) in 1763 is considered a genesis point for the modern mechanical coil spring because it provided a practical, novel application for suspension. The patent detailed nine different iterations of a helical suspension system specifically engineered for hanging coaches. This coiled design offered significant advantages over the contemporary standard, the leaf spring, particularly regarding compactness and reduced maintenance needs. This patent provided the critical industrial template needed to harness elasticity reliably for transport applications.

What specific mechanical application was R. Tradwell's 1763 British Patent No. 792 primarily intended to improve using coiled springs?
inventionMetalspring