Constructive work; . Ja^juupy^MM. inches and an eighth in diameter. To make a frame ofthe dimensions given, first draw with a pair of pencil com-passes on a piece of thin sheet iron a circle four inches indiameter, and inside it another three inches and a half in dia-meter. Carefully cut along these circular lines, thus pro-ducing a circular strip a quarter of an inch wide ; and thenmake another strip of exactly the same shape and cut a strip of iron three-eighths of an inch wide andabout thirteen inches long, with a pencil draw astraight line the entire length of the strip, andan ei
Constructive work; . Ja^juupy^MM. inches and an eighth in diameter. To make a frame ofthe dimensions given, first draw with a pair of pencil com-passes on a piece of thin sheet iron a circle four inches indiameter, and inside it another three inches and a half in dia-meter. Carefully cut along these circular lines, thus pro-ducing a circular strip a quarter of an inch wide ; and thenmake another strip of exactly the same shape and cut a strip of iron three-eighths of an inch wide andabout thirteen inches long, with a pencil draw astraight line the entire length of the strip, andan eighth of an inch from one edge. With theshears cut the strip as pictured at Figure No. XVIII., leav-ing teeth an eighth of an inch in depth and width at intervals 228 of about half an inch. Bend the strip in a true circle fourinches in (Hameter, and rivet the ends together with a coppertack to form a hoop. Then with a pair of princers bend theteeth toward the center, as indicated at Figure XIX. Havingbent all the teeth to be at ri
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