Smithsonian Report, 1959—Welsh 
wa 
'@ h, 
on geen 
Bitititas 
HET 
Gai 
“een tOweerecsteneses esa 5. 
Ndi 
por ae re 
Soy | 
. 
PPE 
Ey |_| a RA 
PSSST [GSOSSSSSOSSSSS 
x a ae fe ‘ i 
Get Pal 
PLATE 3 
denng a DA ies 
Oliver Evans introduced the idea of automation, and his inventions—the elevator, conveyor, 
hopper-boy, descender, and drill—revolutionized the flour-milling industry. 
His machines, 
dubbed rattletraps, were clanking away in the Brandywine Mills as early as the 1780’s, improv- 
ing quality, increasing yield, and reducing the physical burden of milling. 
This plate of the 
“automatic mill” first appeared in 1795 in Evans’s Young Mill-Wright’s and Miller’s Guide. 
