A ratcheting wrench, is a type of wrench that employs a ratchet mechanism to block movement in one direction while allowing ...

The ratchet mechanism is a fascinating energy-conversion system that converts disorderly or random motion into orderly, directed movement through a process known as spontaneous rectification.

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 most used star ratchet configurations feature 18-, 24 ... the kind of leverage that mountain bikers do in a very low gear, the pawl hub design can suffer faulty engagement.

CVTs allow smooth on-the-fly adjustment of gear ratios to maintain a target speed or power requirement, but sacrifice transmission efficiency in the process. Geared transmissions are more ...

The secret to Xtrac IGS is the integration of a ratchet and pawl mechanism between each gear hub and the main shaft so that two consecutive gear ratios can be selected and engaged simultaneously ...

[Matthew] has come up with a clever design that uses mechanical coupling instead using a ratchet and pawl mechanism. There are two gear ratios here, a 1:1 ratio like a normal bicycle crank and a 1 ...

Thanks to a integration of a ratchet and pawl mechanism between each gear hub and the main shaft, two consecutive gears are selected at the same time while only one set of gears is driving.

Ratchet will now have a pair of handy rocket boots to hover. Meanwhile, Clank will have his own dimensional puzzles. We got a lengthy look at gameplay, including some of the gear from the new ...

The 120XP has a 60-tooth gear that alternately engages its Double-Stacked Pawl Technology to produce the 120 positions and three-degree swing arc. The ratchet's teardrop-shaped head has a low profile, ...

The proposed ratchet mechanism utilizes the asymmetry in surface wettability between the smooth and rough faces of the teeth of a geometrically symmetric gear to achieve ratcheting motion.

typically consisting of a gear and a pawl, which restricts the movement of the gear in one direction. In biological systems, the concept of a Brownian ratchet has been proposed to help understand the ...