Tank Shell in Courses
The shell of a storage tank or silo in courses and plates from stock, the vertical seams staggered, with a nozzle or manway marked on its plate. The shell of a storage tank or silo too big for one plate: divided into courses the width of the stock plate and each course into equal plates, the vertical seams of alternate courses offset by half a plate, with a nozzle or manway marked on the plate it falls on.
How the tank shell in courses is developed, with a worked example · Vessels