Benchmark Usa 6303

GEAR-ROLLER GRILLS

A gear or cogwheel is a rotating machine part having cut teeth or, in the case of a cogwheel, inserted teeth (called cogs), which mesh with another toothed part to transmit torque. Geared devices can change the speed, torque, and direction of a power source. Gears almost always produce a change in torque, creating a mechanical advantage, through their gear ratio, and thus may be considered a simple machine. The teeth on the two meshing gears all have the same shape. Two or more meshing gears, working in a sequence, are called a gear train or a transmission. A gear can mesh with a linear toothed part, called a rack, producing translation instead of rotation.

A grill is a perforated cover for an air duct (used for heating, cooling, or ventilation, or a combination thereof). Grills sometimes have louvers which allow the flow of air to be directed.

A grill may also be a device that cooks food by applying heat from below. There are several varieties of grills, with most falling into one of three categories: gas-fueled, charcoal, or electric.

In frying, a grill may refer to a metallic filtering device used to remove food debris from the cooking oil.