Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 389
(879) 380 LOCOMOTIVE APPLIANCES. depends upon the power of holding minute quantitiesin such a manner that circulation cannot take place. The covering used on a boiler is often termed lag-ging, from the custom when wood covering was used. Wood lagging when first applied, and if the work-manship is… … Fig. 1.Manner of Covering a Locomotive Boiler with Sectional Lagging. or shorter time the wood shrinks and the joints open,and the wood is charred and rattles from place andsoon becomes of little use as an insulator. For thisreason the use of wood lagging, long so universallypracticed in this…
Locomotives
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