Elements of Steam Engineering

by Henry Wilson Spangler, Arthur Maurice Greene

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. 1910 ...in level between the points N and K is all that is necessary and in cases where no difference in level can be obtained an inverted " U "-tube is used, the condensation in the pipe-leg falling back into the pipe while that in the lubricator-leg causes the flow of oil. The oil used in a cylinder should be of such a nature that it will not decompose nor vaporize under the high temperature, and form compounds which will attack the metal of the cylin der. With high superheat mineral oils are used, but when there is apt to be wet steam in the cylinder a certain amount of acidless tallow or similar animal oil is used. The most satisfactory oils are the heavy mineral oils remaining after distilling the light oils from crude petroleum. These oils will stand the heat and give satisfaction with dry steam. Sight-feed Oil-cups.--For oiling the bearings with light mineral oil sight-feed oil-cups, Fig. 157, are used. These are made with a brass base A, and cap B, between which is a glass barrel C. Through the hollow post D passes the spindle of a needle valve E, which is controlled by the knurled head F at the top. By adjusting the head F, the spindle, which is threaded, lifts the valve from its seat and regulates the supply of oil flowing through the holes at the bottom of the post. This oil can be observed as it drops through the glass tube G in the base. The cup is filled by turning the slidingcover H from the hole J in the cap. The spring arm K fits against a flattened place on the knurled edge and prevents the head from turning, thus making the flow uniform. The joint at L is made on a washer of cork. Lubricators for the Pins.--The lubrication of the crank pin is accomplished in several ways. With an overhung crank the arrangement shown in Fig. 158 is most ...

362 pages, Paperback

Published May 22, 2025

About the author

1858-1912