The New, Revised and Enlarged Third Year Mechanical Examination for Engineers and Firemen

The New, Revised and Enlarged Third Year Mechanical Examination for Engineers and Firemen

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 edition. Excerpt: ... feature consists of a combined air strainer and check valve, located in a pipe connecting the brake pipe with the main reservoir pipe. A cut-out cock is provided, ahead of this valve and should always be closed except when this fixture is to be used. In such a case, opening the cut-out cock allows air from the brake pipe to pass through the curled air strainer of the fixture to lift the check valve and to flow through a small choke to the main reservoirs, charging them up gradually, and thus, when they are charged, providing pressure for operating the brakes on this locomotive. When using this fixture the double heading cock should be closed and the handle of each brake valve should be in running position, the same as if double-heading and not handling the brakes. Q 502. If you break the brake-pipe connection to die distributing valve, what would you do and how would you handle the engine brakes? A. If the brake pipe connection to the distributing valve is broken, it must be plugged to prevent the escape to brake pipe pressure. Such a break would prevent the automatic operation of the equalizing valve of the distributing valve; but, under such circumstances, the engine brakes could be handled as desired, by properly operating the independent brake valve without reference to the automatic brake valve. Q 503. If you broke the distributing valve release pipe (double-heading pipe), what would you do if single header? If second engine double-header? A. If the distributing valve release pipe of the No. 6 equipment is broken on an engine handling the air on a train, proceed without plugging the pipe. It must be remembered, however, that the engine brakes cannot be applied by means of the independent brake valve and that they will release in either more

Product details

  • Paperback | 62 pages
  • 189 x 246 x 3mm | 127g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236593367
  • 9781236593368