GUNS CLEAN CEMENT KILNS (Feb, 1933)
This looks like fun.
GUNS CLEAN CEMENT KILNS
Blazing away with repeating shotguns, workers in a middle-western cement factory now clean out kilns in which hardened cement has formed. In the past, to clean out the cement the kiln had to cool off and then men with sledgehammers would enter and break away the cement. By using long-barreled shotguns and No. 12 shot, the rings are now knocked loose at a great saving in time and money.