Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co. · leaf 187
IVE ENGINEERING maintained with the valve cutting off early in thestroke. In the Allen valve, an additional passage for the jinlet of steam is furnished, as will be clearly seen byreferring to Figs. 92 and 93. These are transverse andlongitudinal sections through the valve and steamchest, and it… … Figure 89 area of-the steam port is doubled, and is thus the actualequivalent of a single port with a one-inch opening. The wire-drawing incident to running at high speedswith the valve cutting off early in the stroke, is thusgreatly diminished, with a resultant economy of steamand fuel. A…
Locomotives
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