The innovative ratchet mechanism developed by the team involves a geometrically symmetric star-shaped gear made of acrylonitrile butadiene styrene (ABS) resin, with six triangular teeth.

Gearing up: a ratchet comprising a gear wheel and a spring-loaded pawl. (Courtesy: iStock/PeteMuller) A thought experiment proposed more than 50 years ago by Richard Feynman has finally been realized ...

The mechanism, consisting of a pawl and a gear, is the central component of the ratchet that allows it to hold the fastener while partially rotating back for another turn.

The second key feature of a ratchet and pawl is its asymmetric potential. This is formed by a combination of the spring in the pawl mechanism and the asymmetric teeth of the ratchet wheel.

This tool has got guts. The ratchet mechanism is achieved with a 6-pawl design that combines Swiss watch precision with garage bay ruggedness. Wisely, ...

The mechanism, consisting of a pawl and a gear, is the central component of the ratchet that allows it to hold the fastener while partially rotating back for another turn.

BELOIT — Rodger Sharp’s engineering classes recently showcased West Branch High School’s new woodshop addition with an exciting hands-on project, demonstrating their ingenuity and technical skills in ...