Tamping iron

Related to Tamping iron: Phineas Gage
an iron rod for beating down the earthy substance in tamping for blasting.

See also: Tamping

References in periodicals archive ?
After a tamping iron blasted through the front part of his brain (shown) in 1848, the mild-mannered rail worker Phineas Gage turned nasty.
Harlow donated Phineas Gage's skull and tamping iron to the Harvard Medical School's Warren Anatomical Museum, located in the Countway Library of Medicine, where it still resides today.
He mistakenly triggered one explosion before an assistant had covered the strategically placed explosive powder with a buffer of sand; the force of the blast threw a 3-1/2-foot-long tamping iron through his head.