In 1910, reflecting the growing demand for its products, Sugar Centrifugal Discharger contracted with the Stearns-Rogers Manufacturing Company of Denver to assist with production and marketing. As Stearns-Rogers and American Tool and Machine busied themselves with fulfilling orders, Roberts continued to refine his ideas. Sugar Centrifugal Discharger racked up additional patents and designed new products, including sugar washer sprayers, lap joint screens, and still-more-efficient centrifugals, including models with self-dischargers. Under a 1915 contract among the three companies, Sugar Centrifugal Discharger would receive 40 percent of the profits for its products, with American Tool and Machine and Stearns-Rogers Manufacturing splitting the balance. It soon became apparent that Roberts needed a facility where he could assemble and test his design ideas before they were ready to go to market. Sugar Centrifugal Discharger and Thomas B. Stearns of Stearns-Rogers devised a plan under which they would jointly open a new plant in which Roberts would design, build, and test new machines. The products would then be manufactured by American Tool and Machine, which would pay a royalty or a percentage of the profit. above: The Sugar Centrifugal Discharger Company logo. 21