Improvements in or relating to Tubular Heating Elements for Feed-water Heaters, or the like.

摘要

121,649. Howell &. Co., and Willans, G. H. Jan. 8, 1918. Fire and smoke tube superheaters. - Relates to U-tube heating elements inserted in boiler smoke tubes, particularly to feed heating elements of the kind described in Specification 14976/15,. [Class 123 (ii), Steam generators], and consistsin connecting the U-tubes together by short tubular pieces 6, Fig. 1, secured directly, preferably by welding, to the sides of adjacent legs 3a, 4a of the tubes near to the ends extending into the smoke box. The connexions may be made by belting together flanged tubular pieces on each of two adjacent legs. The ends of the tubes are closed by internally screw-threaded caps 9.