The Keller Machine is a machine for bending pre-cut candy cane sticks, invented by Father Gregory H. Keller, a Roman Catholic priest who worked with his brother-in-law in the candy business. Keller's patent, number 2,956,520, was issued on October 18, 1960, and was co-assigned to Robert E. McCormack, the founder of Bobs Candies. The machine uses a system of grippers and rollers mounted on chains or wheels to pass individual candy sticks over curved dies that bend them into the familiar hooked shape, automating a process that had previously been done by hand and helping candy cane production scale into a major confectionery industry.
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