A. Frederick Collins,
Handicraft for boys
(1918)
“ A strong butt seam can be made by hard soldering or brazing the edges together but it takes a hot flame and considerable skill to do a good job of this kind. Another way to make a butt seam of two thick sheets [71] of metal is to lay them with their edges together and then rivet a strip or plate on both sides of them as shown at D.In making corner joints one or both edges of the sheet should be bent over as pictured at E when they can be soldered, riveted or bolted together; or a grooved seam can be made as shown at F if the metal is thin enough. ”
