Excerpt from The Westinghouse Automatic Brake The automatic action of the brake is due to the construction of the triple valve. The primary parts of which are a piston and a slide-valve. A redue tion of pressure in the brake-pipe causes the excess of pressure in the aux iliary reservoir to force the piston of the triple valve down. Moving the slide-valve so as to allow the air in the auxiliary reservoir to pass directly into the brake-cylinder and apply the brakes. When the pressure in the brake-pipe is again increased above that in the auxiliary reservoir. The piston is forced up. Moving the slitleovalve to its former position. Opening communication from the brake-pipe to the auxiliary reservoir, and permitting the air in the brake-cylinder to escape, thus releasing the brakes. Thus it will be seen that any radar/ion a] pressure in {be brake-pipe app/11's (lu bmérs, which is the essential feature of the automatic brake. If the engineer wishes to apply the brakes, he moves the handle of the engi neer's brake-valve to the right, which first closes a valve retaining the pressure in the main reservoir. And then permits a portion of the air in the brake-pipe to escape. To release the brakes. He turns the handle to its former position, which allows the air in the main reservoir to flow into the brake. Pipe. Restoring the pressure and releasing the brakes. A valve. Called the conductor's valve. Is placed in each car. With a cord running the length of the car. And any of the train-men. By pulling this cord, can open the valve, which allows the air to escape from the brake-pipe. Should the train break in two, the air in the brake-pipe escapes, and the brakes are applied to both sections of the train; and should a hose or pipe burst. The brakes are also automatically applied. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.