. The Locomotive . -purnoceJDraft JDraft Through. Fig. 2. Draft gages connected to boiler. ash-pit doors. Close the damper and note the draft gage it a certain amount, say one-fourth, note the draft gage read-ing. Open it one-half, note the reading; open it three-quarters,note again; and then open it wide. Now look over the set of read-ings. It will generally be found that the damper openings donot correspond to the changes in air flow, and it can usually beseen that the damper can be moved quite a bit from full closed (Continued on page 150) 148 THE LOCOMOTIVE, [January, iheJi m
. The Locomotive . -purnoceJDraft JDraft Through. Fig. 2. Draft gages connected to boiler. ash-pit doors. Close the damper and note the draft gage it a certain amount, say one-fourth, note the draft gage read-ing. Open it one-half, note the reading; open it three-quarters,note again; and then open it wide. Now look over the set of read-ings. It will generally be found that the damper openings donot correspond to the changes in air flow, and it can usually beseen that the damper can be moved quite a bit from full closed (Continued on page 150) 148 THE LOCOMOTIVE, [January, iheJi m STEAM HARTFO^p C. C. Perry, Editor. HARTFORD, JANUARY, 1919. Single copies can be obtained free by calling at any of the company^ s agencies. Subscription price 50 cents per year when mailed from this office. Bound volumes two dollars each. Reprinting of matter from this paper is permitted if credited to. The Locomotive of The Hartford Steam Boiler I, & I. Co. During the year just past every plant owner has had hisenergies directed by the
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