A September 1929 article titled “Photo Cell in Sorting Machine Excels Human Eye” by Lester Ferenci describes how a cigar-sorting apparatus benefits from using a photo cell to sort stogies by color. The article starts with a prophetic statement: “More and more is...
Register or Sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.
Sponsored Recommendations
Sponsored Recommendations
June 27, 2025
June 25, 2025
June 25, 2025