Hall of Fame Inductee
Class of 2013
Samuel Calvin McLanahan
Samuel Calvin McLanahan designed nearly all of the equipment that came out of the foundry from the time he purchased one-sixth of McLanahan Corp. in 1880 to the conclusion of his tenure as general manager in 1902. Around 1890, Samuel conceived a way to wash clay from the rock in his family’s phosphate deposits in Florida. Inside a long wooden box, he mounted wooden logs and attached cast-iron paddles to them. Shortly thereafter, Samuel realized the need for a simple primary crusher that could handle wet, sticky feeds containing pieces that were too large. So in 1894, he invented the single-roll crusher to deal with the problem.