A professional who shapes semielliptical spring leaves, using hand-forming jack. Responsibilities include:

• Reads specifications to determine arch required to shape leaf and computes additional arch required to compensate for unsetting of leaves in subsequent operations.
• Positions forming die (flexible pattern) over center pin of jack.
• Bends pattern and secures it to jack with holding pin.
• Positions center hole of hot leaf over center pin and bends leaf, using clamp tongs.
• Clamps ends of each leaf to pattern and sprinkles water over leaf to set arch and prevent warping.
• Immerses leaves in oil and places them in tempering oven.
• Shapes cold leaves on fitting block with sledgehammer.