Track Brake
Track brakes are a form of brakes unique to railborne vehicles. The braking force derives from the friction resulting from the application of wood or metal braking shoes directly to the tracks (as the name suggests). Early examples of track brakes used on the horse hauled mineral tramways that preceded the steam locomotive were described as sledge brakes, and are usually associated with lines that used gravity propulsion.
Early systems used manual force to apply the braking shoes; more recently system have used arrays of electromagnets to hold the shoes against the rail. In some applications, the shoes are applied by powerful springs, and held off by mechanical or electro-magnetic force.
Read more about Track Brake: Cable Car Track Brakes
Famous quotes containing the word track:
“It is remarkable how easily and insensibly we fall into a particular route, and make a beaten track for ourselves. I had not lived there a week before my feet wore a path from my door to the pond-side; and though it is five or six years since I trod it, it is still quite distinct. It is true, I fear, that others may have fallen into it, and so helped to keep it open.”
—Henry David Thoreau (1817–1862)