Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 138
Fig. 49 … Fig. 50 at right angles, as shown in Fig. 49. The distance 0-B Should equal that from the rear wall to the boiler head, and the height, 0-A, should be about equal to 0-B, and J should bring the point A about two inches above the top 126 Steam Engineering TOW of tubes. The clamp thus formed is…
