Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916) (14774099604)

Identifier: cyclopediaofloco00swin (find matches)
Title: Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives
Year: 1916 (1910s)
Authors: Swingle, Calvin Franklin, 1846- (from old catalog)
Subjects: Locomotives
Publisher: Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress



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much controversyamong engineers and firemen in regard to the opera-tion of compound locomotives of this system. Thefirst thing the engineer must learn is to use the reverselever for what it is intended; that is, he must not hesi-tate to move it forward when ascending a grade if thelocomotive shows signs of slowing up. The reversequadrant is always so made that it is impossible to cutoff steam in the high-pressure cylinder at less thanhalf stroke, which avoids the damage that might ensuefrom excessive compression. It is perfectly practi-cable to operate the engine at any position of the)reverse lever between half stroke and full stroke, with-Jout serious injury to the fire. When starting the loco-motive from a state of rest, the engineer should always1open the cylinder cocks to relieve the cylinders of con-densation, and as the starting valve is attached to thecylinder cocks, this movement also admits steam tothe low-pressure cylinder and enables the locomotive COMPOUND LOCOMOTIVES 2^*
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1 j, LOCOMOTIVE ENGINEERING to start quickly and freely. In case the locomotive isattached to a passenger train and standing in acrowded station, or in some position where it is unde-sirable to open the cylinder cocks, the engineer shouldmove the cylinder cock lever in position to permitlive steam to pass by into the low-pressure cylinder,thus enabling the locomotive to start quickly and uni-formly, without any of the jerking motion so commonin two-cylinder or cross-compound locomotives.After a few revolutions have been made and the cylin-ders are free from water caused by condensation orpriming, the engineer should move the cylinder cocklever into the central position, causing the engine towork compound entirely. This should be done beforethe reverse lever is disturbed from its full gear posi-tion. The reverse lever should never be hookedup, thereby shortening the travel of the valve, untilafter the cylinder cock lever has been placed in thecentral position. It is often necessary to