spaced from four to eight per inch ofheight. The fins are made from 0.005 in. ribbon, theedges of which are folded over so as not to present aknife edge at the front and rear of the radiator. The finsare pierced to fit closely over the tubes and the frontedge of the fin is, in some cases, slotted… … ^0- 1—Sket4:h of a portion of the Bmh fin amitube core, shmeinff section of the tube with double-locked seam The separate vertical sections are 1 in. wide and aremade of such length as to form a core of the desiredheight. The single sc;tions are placed side by side inassembly to form a co.2 of a…
Automobiles · Aeronautics
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