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Hand Spring Former

Shape semielliptical spring leaves.

What does a Hand Spring Former do?

Shapes semielliptical spring leaves, using hand-forming jack: 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 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 [TEMPERER]. Shapes cold leaves on fitting block with sledgehammer.