Device for Cleaning Gun Barrels, Flues, &c.

Patent for a new and improved gun-barrel cleaner. This design consists in "[t]he combination of a flat shank having a hole in its intermediate portion, a pivot-bolt having its middle round and its ends square, and a cleaning-head secured upon said bolt, said head consisting of two parts, one part being secured upon each end of said bolt" (lines 4-9)