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Byline: SEAN HIGGINS
George Westinghouse was traveling home by train in 1866 when it suddenly began to slow down. The engineers had spotted a wreck ahead and were trying frantically to avoid a collision.
Sparks flew as metal strained against metal to slow the speeding locomotive down. The individual train compartments lurched forward and slammed together. The passengers were violently thrown about. For many riders, the effect of a sudden stop wasn't much different than a collision.
At the time, there was no other way. Trains were heavy and fast-moving. An emergency stop could be done only if all the brakemen on different cars heard the engineer's whistle and applied their brakes manually at the same time. Even if done right, a wreck could still occur.
Westinghouse (1846-1914), then just a 20-year-old engineer, figured there had to be a better way. He immediately set to work -- experimenting with brakes -- to find it.
Two years later, he found that way: the airbrake.
Patented the next year, the device used compressed air as a braking mechanism. This not only slowed the train, but also absorbed and then dissipated its momentum. Plus, the main engineer could activate the whole brake system by himself.