Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 132
Fig. 2. Fig. 3. Exterior View. Sectional View. The Star Improved Open or Plain Locomotive Pop Safety Valve. Figs. 4 and 5 illustrate the muffled Star pop safetyvalve, which is seen to be similar in construction,with the addition of the top hood, or muffler, whichtends to greatly reduce the noise of…
Locomotives
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