My first job out of college in '74 (1974, not 1874) was in an old chain making factory in York, Pa. The chain making machinery in the "Upper Mill" was all powered by overhead lineshafts. Enough to make a long-tailed squirrel nervous, quite the cacophony of noise. I did indeed get my tie caught in the driveshaft of a machine one day and the quick actions of the operator was all that saved me. Those operators all carried flat bars to flip the flat belts off of the pulleys and thank God were really good at it!
