Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 193
OTIVE ENGINEERING maintained with the valve cutting off early in thestroke. In the Allen valve, an additional passage for theinlet of steam is furnished, as will be clearly seen byreferring to Figs. 92 and 93. These are transverse andlongitudinal sections through the valve and steamohest, 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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