America 250 Candidate: Automatic Flour Mill
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AUTOMATION HISTORY · AMERICA 250 · REPLACEMENT CANDIDATE
Automatic Flour Mill
American milestone: 1780s · Oliver Evans · Delaware/Pennsylvania
Status: Replacement candidate. Final America 250 number will be assigned after the chronology audit.
Why it belongs in America 250
Oliver Evans redesigned flour milling as an integrated continuous process. Beginning in the 1780s, his system used conveyors, elevators and other mechanical devices to move grain and flour between stages with far less manual handling. The National Park Service describes Evans's mill as essentially automating the entire flour-milling process.
Connection to automation
The system linked separate production steps into a coordinated material-flow process, making it an early American example of process automation and continuous manufacturing.